Home / 280,573.04-387,185.19-159,711.73

Finding the Fourth Proportional to 280,573.04, 387,185.19 and 159,711.73

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Solution

The fourth proportional to 280,573.04, 387,185.19 and 159,711.73 is: 220,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,573.04 : 387,185.19 = 159,711.73 : x
  2. Step 2: Convert to fraction form
    280,573.04/387,185.19 = 159,711.73/x
  3. Step 3: Cross multiply
    280,573.04x = 387,185.19 × 159,711.73
  4. Step 4: Simplify right side
    280,573.04x = 61,838,016,525.28
  5. Step 5: Solve for x
    x = 61,838,016,525.28/280,573.04
  6. Step 6: Final answer
    x = 220,399.00

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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.