Home / 280,132.17-386,585.19-152,810.43

Finding the Fourth Proportional to 280,132.17, 386,585.19 and 152,810.43

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Solution

The fourth proportional to 280,132.17, 386,585.19 and 152,810.43 is: 210,879.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,132.17 : 386,585.19 = 152,810.43 : x
  2. Step 2: Convert to fraction form
    280,132.17/386,585.19 = 152,810.43/x
  3. Step 3: Cross multiply
    280,132.17x = 386,585.19 × 152,810.43
  4. Step 4: Simplify right side
    280,132.17x = 59,074,249,115.53
  5. Step 5: Solve for x
    x = 59,074,249,115.53/280,132.17
  6. Step 6: Final answer
    x = 210,879.92

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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.