Home / 287,809.04-397,179.38-158,753.03

Finding the Fourth Proportional to 287,809.04, 397,179.38 and 158,753.03

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Solution

The fourth proportional to 287,809.04, 397,179.38 and 158,753.03 is: 219,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,809.04 : 397,179.38 = 158,753.03 : x
  2. Step 2: Convert to fraction form
    287,809.04/397,179.38 = 158,753.03/x
  3. Step 3: Cross multiply
    287,809.04x = 397,179.38 × 158,753.03
  4. Step 4: Simplify right side
    287,809.04x = 63,053,430,227.70
  5. Step 5: Solve for x
    x = 63,053,430,227.70/287,809.04
  6. Step 6: Final answer
    x = 219,080.78

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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.