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Finding the Fourth Proportional to 154,340.55, 232,002.90 and 145,483.20

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Solution

The fourth proportional to 154,340.55, 232,002.90 and 145,483.20 is: 218,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,340.55 : 232,002.90 = 145,483.20 : x
  2. Step 2: Convert to fraction form
    154,340.55/232,002.90 = 145,483.20/x
  3. Step 3: Cross multiply
    154,340.55x = 232,002.90 × 145,483.20
  4. Step 4: Simplify right side
    154,340.55x = 33,752,524,301.28
  5. Step 5: Solve for x
    x = 33,752,524,301.28/154,340.55
  6. Step 6: Final answer
    x = 218,688.64

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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.