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Finding the Fourth Proportional to 153,575.40, 230,363.10 and 100,431.30

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Solution

The fourth proportional to 153,575.40, 230,363.10 and 100,431.30 is: 150,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,575.40 : 230,363.10 = 100,431.30 : x
  2. Step 2: Convert to fraction form
    153,575.40/230,363.10 = 100,431.30/x
  3. Step 3: Cross multiply
    153,575.40x = 230,363.10 × 100,431.30
  4. Step 4: Simplify right side
    153,575.40x = 23,135,665,605.03
  5. Step 5: Solve for x
    x = 23,135,665,605.03/153,575.40
  6. Step 6: Final answer
    x = 150,646.95

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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.