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Finding the Fourth Proportional to 534,907.10, 802,397.10 and 170,139.80

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Solution

The fourth proportional to 534,907.10, 802,397.10 and 170,139.80 is: 255,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,907.10 : 802,397.10 = 170,139.80 : x
  2. Step 2: Convert to fraction form
    534,907.10/802,397.10 = 170,139.80/x
  3. Step 3: Cross multiply
    534,907.10x = 802,397.10 × 170,139.80
  4. Step 4: Simplify right side
    534,907.10x = 136,519,682,114.58
  5. Step 5: Solve for x
    x = 136,519,682,114.58/534,907.10
  6. Step 6: Final answer
    x = 255,221.29

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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.