Home / 280,911.22-387,562.52-159,966.76

Finding the Fourth Proportional to 280,911.22, 387,562.52 and 159,966.76

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Solution

The fourth proportional to 280,911.22, 387,562.52 and 159,966.76 is: 220,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,911.22 : 387,562.52 = 159,966.76 : x
  2. Step 2: Convert to fraction form
    280,911.22/387,562.52 = 159,966.76/x
  3. Step 3: Cross multiply
    280,911.22x = 387,562.52 × 159,966.76
  4. Step 4: Simplify right side
    280,911.22x = 61,997,120,621.84
  5. Step 5: Solve for x
    x = 61,997,120,621.84/280,911.22
  6. Step 6: Final answer
    x = 220,700.05

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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.