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Finding the Fourth Proportional to 522.77, 720.29 and 375.35

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Solution

The fourth proportional to 522.77, 720.29 and 375.35 is: 517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.77 : 720.29 = 375.35 : x
  2. Step 2: Convert to fraction form
    522.77/720.29 = 375.35/x
  3. Step 3: Cross multiply
    522.77x = 720.29 × 375.35
  4. Step 4: Simplify right side
    522.77x = 270,358.19
  5. Step 5: Solve for x
    x = 270,358.19/522.77
  6. Step 6: Final answer
    x = 517.17

Related Problems

Find fourth proportional to 261.38, 360.15 and 187.67
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.