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Finding the Fourth Proportional to 534,458.88, 801,686.88 and 218,916

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Solution

The fourth proportional to 534,458.88, 801,686.88 and 218,916 is: 328,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,458.88 : 801,686.88 = 218,916 : x
  2. Step 2: Convert to fraction form
    534,458.88/801,686.88 = 218,916/x
  3. Step 3: Cross multiply
    534,458.88x = 801,686.88 × 218,916
  4. Step 4: Simplify right side
    534,458.88x = 175,502,085,022.08
  5. Step 5: Solve for x
    x = 175,502,085,022.08/534,458.88
  6. Step 6: Final answer
    x = 328,373.41

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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.