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Finding the Fourth Proportional to 588.48, 812.25 and 392.01

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Solution

The fourth proportional to 588.48, 812.25 and 392.01 is: 541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.48 : 812.25 = 392.01 : x
  2. Step 2: Convert to fraction form
    588.48/812.25 = 392.01/x
  3. Step 3: Cross multiply
    588.48x = 812.25 × 392.01
  4. Step 4: Simplify right side
    588.48x = 318,410.12
  5. Step 5: Solve for x
    x = 318,410.12/588.48
  6. Step 6: Final answer
    x = 541.07

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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.