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Finding the Fourth Proportional to 356,253.86, 534,740.87 and 315,991.35

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Solution

The fourth proportional to 356,253.86, 534,740.87 and 315,991.35 is: 474,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,253.86 : 534,740.87 = 315,991.35 : x
  2. Step 2: Convert to fraction form
    356,253.86/534,740.87 = 315,991.35/x
  3. Step 3: Cross multiply
    356,253.86x = 534,740.87 × 315,991.35
  4. Step 4: Simplify right side
    356,253.86x = 168,973,487,831.52
  5. Step 5: Solve for x
    x = 168,973,487,831.52/356,253.86
  6. Step 6: Final answer
    x = 474,306.41

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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.