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Finding the Fourth Proportional to 522.57, 784.01 and 157.41

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Solution

The fourth proportional to 522.57, 784.01 and 157.41 is: 236.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.57 : 784.01 = 157.41 : x
  2. Step 2: Convert to fraction form
    522.57/784.01 = 157.41/x
  3. Step 3: Cross multiply
    522.57x = 784.01 × 157.41
  4. Step 4: Simplify right side
    522.57x = 123,411.01
  5. Step 5: Solve for x
    x = 123,411.01/522.57
  6. Step 6: Final answer
    x = 236.16

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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.