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Finding the Fourth Proportional to 522.41, 783.54 and 171.02

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Solution

The fourth proportional to 522.41, 783.54 and 171.02 is: 256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.41 : 783.54 = 171.02 : x
  2. Step 2: Convert to fraction form
    522.41/783.54 = 171.02/x
  3. Step 3: Cross multiply
    522.41x = 783.54 × 171.02
  4. Step 4: Simplify right side
    522.41x = 133,997.09
  5. Step 5: Solve for x
    x = 133,997.09/522.41
  6. Step 6: Final answer
    x = 256.50

Related Problems

Find fourth proportional to 261.20, 391.77 and 85.51
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.