Home / 278,569.02-417,800.07-78,841.11

Finding the Fourth Proportional to 278,569.02, 417,800.07 and 78,841.11

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Solution

The fourth proportional to 278,569.02, 417,800.07 and 78,841.11 is: 118,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,569.02 : 417,800.07 = 78,841.11 : x
  2. Step 2: Convert to fraction form
    278,569.02/417,800.07 = 78,841.11/x
  3. Step 3: Cross multiply
    278,569.02x = 417,800.07 × 78,841.11
  4. Step 4: Simplify right side
    278,569.02x = 32,939,821,276.88
  5. Step 5: Solve for x
    x = 32,939,821,276.88/278,569.02
  6. Step 6: Final answer
    x = 118,246.53

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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.