Home / 280,139.13-386,585.73-152,819.28

Finding the Fourth Proportional to 280,139.13, 386,585.73 and 152,819.28

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Solution

The fourth proportional to 280,139.13, 386,585.73 and 152,819.28 is: 210,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,139.13 : 386,585.73 = 152,819.28 : x
  2. Step 2: Convert to fraction form
    280,139.13/386,585.73 = 152,819.28/x
  3. Step 3: Cross multiply
    280,139.13x = 386,585.73 × 152,819.28
  4. Step 4: Simplify right side
    280,139.13x = 59,077,752,916.87
  5. Step 5: Solve for x
    x = 59,077,752,916.87/280,139.13
  6. Step 6: Final answer
    x = 210,887.19

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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.