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Finding the Fourth Proportional to 617.41, 926.11 and 207

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Solution

The fourth proportional to 617.41, 926.11 and 207 is: 310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.41 : 926.11 = 207 : x
  2. Step 2: Convert to fraction form
    617.41/926.11 = 207/x
  3. Step 3: Cross multiply
    617.41x = 926.11 × 207
  4. Step 4: Simplify right side
    617.41x = 191,703.86
  5. Step 5: Solve for x
    x = 191,703.86/617.41
  6. Step 6: Final answer
    x = 310.50

Related Problems

Find fourth proportional to 308.70, 463.05 and 103.50
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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.