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Finding the Fourth Proportional to 387,391.66, 534,446.73 and 224,017.94

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Solution

The fourth proportional to 387,391.66, 534,446.73 and 224,017.94 is: 309,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,391.66 : 534,446.73 = 224,017.94 : x
  2. Step 2: Convert to fraction form
    387,391.66/534,446.73 = 224,017.94/x
  3. Step 3: Cross multiply
    387,391.66x = 534,446.73 × 224,017.94
  4. Step 4: Simplify right side
    387,391.66x = 119,725,656,830.45
  5. Step 5: Solve for x
    x = 119,725,656,830.45/387,391.66
  6. Step 6: Final answer
    x = 309,055.85

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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.