Home / 280,876.32-387,581.45-160,010.39

Finding the Fourth Proportional to 280,876.32, 387,581.45 and 160,010.39

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Solution

The fourth proportional to 280,876.32, 387,581.45 and 160,010.39 is: 220,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,876.32 : 387,581.45 = 160,010.39 : x
  2. Step 2: Convert to fraction form
    280,876.32/387,581.45 = 160,010.39/x
  3. Step 3: Cross multiply
    280,876.32x = 387,581.45 × 160,010.39
  4. Step 4: Simplify right side
    280,876.32x = 62,017,059,140.17
  5. Step 5: Solve for x
    x = 62,017,059,140.17/280,876.32
  6. Step 6: Final answer
    x = 220,798.46

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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.