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Finding the Fourth Proportional to 153,850.60, 211,998.90 and 113,500.60

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Solution

The fourth proportional to 153,850.60, 211,998.90 and 113,500.60 is: 156,398.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,850.60 : 211,998.90 = 113,500.60 : x
  2. Step 2: Convert to fraction form
    153,850.60/211,998.90 = 113,500.60/x
  3. Step 3: Cross multiply
    153,850.60x = 211,998.90 × 113,500.60
  4. Step 4: Simplify right side
    153,850.60x = 24,062,002,349.34
  5. Step 5: Solve for x
    x = 24,062,002,349.34/153,850.60
  6. Step 6: Final answer
    x = 156,398.50

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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.