Home / 280,132.20-386,585.22-152,810.46

Finding the Fourth Proportional to 280,132.20, 386,585.22 and 152,810.46

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Solution

The fourth proportional to 280,132.20, 386,585.22 and 152,810.46 is: 210,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,132.20 : 386,585.22 = 152,810.46 : x
  2. Step 2: Convert to fraction form
    280,132.20/386,585.22 = 152,810.46/x
  3. Step 3: Cross multiply
    280,132.20x = 386,585.22 × 152,810.46
  4. Step 4: Simplify right side
    280,132.20x = 59,074,265,297.40
  5. Step 5: Solve for x
    x = 59,074,265,297.40/280,132.20
  6. Step 6: Final answer
    x = 210,879.95

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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.