Home / 287,743.77-397,337.13-180,498.15

Finding the Fourth Proportional to 287,743.77, 397,337.13 and 180,498.15

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Solution

The fourth proportional to 287,743.77, 397,337.13 and 180,498.15 is: 249,244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,743.77 : 397,337.13 = 180,498.15 : x
  2. Step 2: Convert to fraction form
    287,743.77/397,337.13 = 180,498.15/x
  3. Step 3: Cross multiply
    287,743.77x = 397,337.13 × 180,498.15
  4. Step 4: Simplify right side
    287,743.77x = 71,718,616,891.31
  5. Step 5: Solve for x
    x = 71,718,616,891.31/287,743.77
  6. Step 6: Final answer
    x = 249,244.73

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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.