Home / 280,562.22-387,175.86-153,238.12

Finding the Fourth Proportional to 280,562.22, 387,175.86 and 153,238.12

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Solution

The fourth proportional to 280,562.22, 387,175.86 and 153,238.12 is: 211,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,562.22 : 387,175.86 = 153,238.12 : x
  2. Step 2: Convert to fraction form
    280,562.22/387,175.86 = 153,238.12/x
  3. Step 3: Cross multiply
    280,562.22x = 387,175.86 × 153,238.12
  4. Step 4: Simplify right side
    280,562.22x = 59,330,098,959.90
  5. Step 5: Solve for x
    x = 59,330,098,959.90/280,562.22
  6. Step 6: Final answer
    x = 211,468.60

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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.