Home / 280,033.13-386,474.88-172,600.40

Finding the Fourth Proportional to 280,033.13, 386,474.88 and 172,600.40

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Solution

The fourth proportional to 280,033.13, 386,474.88 and 172,600.40 is: 238,206.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,033.13 : 386,474.88 = 172,600.40 : x
  2. Step 2: Convert to fraction form
    280,033.13/386,474.88 = 172,600.40/x
  3. Step 3: Cross multiply
    280,033.13x = 386,474.88 × 172,600.40
  4. Step 4: Simplify right side
    280,033.13x = 66,705,716,945.58
  5. Step 5: Solve for x
    x = 66,705,716,945.58/280,033.13
  6. Step 6: Final answer
    x = 238,206.52

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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.