Home / 280,572.28-387,209.52-159,713.62

Finding the Fourth Proportional to 280,572.28, 387,209.52 and 159,713.62

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Solution

The fourth proportional to 280,572.28, 387,209.52 and 159,713.62 is: 220,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,572.28 : 387,209.52 = 159,713.62 : x
  2. Step 2: Convert to fraction form
    280,572.28/387,209.52 = 159,713.62/x
  3. Step 3: Cross multiply
    280,572.28x = 387,209.52 × 159,713.62
  4. Step 4: Simplify right side
    280,572.28x = 61,842,634,137.66
  5. Step 5: Solve for x
    x = 61,842,634,137.66/280,572.28
  6. Step 6: Final answer
    x = 220,416.05

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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.