Home / 280,765.07-387,345.92-173,148.29

Finding the Fourth Proportional to 280,765.07, 387,345.92 and 173,148.29

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Solution

The fourth proportional to 280,765.07, 387,345.92 and 173,148.29 is: 238,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,765.07 : 387,345.92 = 173,148.29 : x
  2. Step 2: Convert to fraction form
    280,765.07/387,345.92 = 173,148.29/x
  3. Step 3: Cross multiply
    280,765.07x = 387,345.92 × 173,148.29
  4. Step 4: Simplify right side
    280,765.07x = 67,068,280,884.01
  5. Step 5: Solve for x
    x = 67,068,280,884.01/280,765.07
  6. Step 6: Final answer
    x = 238,876.87

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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.