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Finding the Fourth Proportional to 534,891.20, 802,142.40 and 179,916.80

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Solution

The fourth proportional to 534,891.20, 802,142.40 and 179,916.80 is: 269,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,891.20 : 802,142.40 = 179,916.80 : x
  2. Step 2: Convert to fraction form
    534,891.20/802,142.40 = 179,916.80/x
  3. Step 3: Cross multiply
    534,891.20x = 802,142.40 × 179,916.80
  4. Step 4: Simplify right side
    534,891.20x = 144,318,893,752.32
  5. Step 5: Solve for x
    x = 144,318,893,752.32/534,891.20
  6. Step 6: Final answer
    x = 269,809.81

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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.