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Finding the Fourth Proportional to 269,335.80, 404,003.70 and 157,142.70

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Solution

The fourth proportional to 269,335.80, 404,003.70 and 157,142.70 is: 235,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,335.80 : 404,003.70 = 157,142.70 : x
  2. Step 2: Convert to fraction form
    269,335.80/404,003.70 = 157,142.70/x
  3. Step 3: Cross multiply
    269,335.80x = 404,003.70 × 157,142.70
  4. Step 4: Simplify right side
    269,335.80x = 63,486,232,227.99
  5. Step 5: Solve for x
    x = 63,486,232,227.99/269,335.80
  6. Step 6: Final answer
    x = 235,714.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.