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Finding the Fourth Proportional to 155,002.72, 230,916.08 and 149,358.64

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Solution

The fourth proportional to 155,002.72, 230,916.08 and 149,358.64 is: 222,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,002.72 : 230,916.08 = 149,358.64 : x
  2. Step 2: Convert to fraction form
    155,002.72/230,916.08 = 149,358.64/x
  3. Step 3: Cross multiply
    155,002.72x = 230,916.08 × 149,358.64
  4. Step 4: Simplify right side
    155,002.72x = 34,489,311,662.93
  5. Step 5: Solve for x
    x = 34,489,311,662.93/155,002.72
  6. Step 6: Final answer
    x = 222,507.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.