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Finding the Fourth Proportional to 230,948.64, 318,620.64 and 140,272.32

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Solution

The fourth proportional to 230,948.64, 318,620.64 and 140,272.32 is: 193,522.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,948.64 : 318,620.64 = 140,272.32 : x
  2. Step 2: Convert to fraction form
    230,948.64/318,620.64 = 140,272.32/x
  3. Step 3: Cross multiply
    230,948.64x = 318,620.64 × 140,272.32
  4. Step 4: Simplify right side
    230,948.64x = 44,693,656,372.68
  5. Step 5: Solve for x
    x = 44,693,656,372.68/230,948.64
  6. Step 6: Final answer
    x = 193,522.06

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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.