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Finding the Fourth Proportional to 540,020.80, 809,876.40 and 160,925.68

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Solution

The fourth proportional to 540,020.80, 809,876.40 and 160,925.68 is: 241,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,020.80 : 809,876.40 = 160,925.68 : x
  2. Step 2: Convert to fraction form
    540,020.80/809,876.40 = 160,925.68/x
  3. Step 3: Cross multiply
    540,020.80x = 809,876.40 × 160,925.68
  4. Step 4: Simplify right side
    540,020.80x = 130,329,910,385.95
  5. Step 5: Solve for x
    x = 130,329,910,385.95/540,020.80
  6. Step 6: Final answer
    x = 241,342.39

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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.