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Finding the Fourth Proportional to 580,400.10, 870,600.15 and 159,675.30

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Solution

The fourth proportional to 580,400.10, 870,600.15 and 159,675.30 is: 239,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,400.10 : 870,600.15 = 159,675.30 : x
  2. Step 2: Convert to fraction form
    580,400.10/870,600.15 = 159,675.30/x
  3. Step 3: Cross multiply
    580,400.10x = 870,600.15 × 159,675.30
  4. Step 4: Simplify right side
    580,400.10x = 139,013,340,131.30
  5. Step 5: Solve for x
    x = 139,013,340,131.30/580,400.10
  6. Step 6: Final answer
    x = 239,512.95

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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.