Home / 280,910.97-387,562.19-159,966.50

Finding the Fourth Proportional to 280,910.97, 387,562.19 and 159,966.50

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Solution

The fourth proportional to 280,910.97, 387,562.19 and 159,966.50 is: 220,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,910.97 : 387,562.19 = 159,966.50 : x
  2. Step 2: Convert to fraction form
    280,910.97/387,562.19 = 159,966.50/x
  3. Step 3: Cross multiply
    280,910.97x = 387,562.19 × 159,966.50
  4. Step 4: Simplify right side
    280,910.97x = 61,996,964,328.99
  5. Step 5: Solve for x
    x = 61,996,964,328.99/280,910.97
  6. Step 6: Final answer
    x = 220,699.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.