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Finding the Fourth Proportional to 345,575.85, 518,008.32 and 132,293.54

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Solution

The fourth proportional to 345,575.85, 518,008.32 and 132,293.54 is: 198,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,575.85 : 518,008.32 = 132,293.54 : x
  2. Step 2: Convert to fraction form
    345,575.85/518,008.32 = 132,293.54/x
  3. Step 3: Cross multiply
    345,575.85x = 518,008.32 × 132,293.54
  4. Step 4: Simplify right side
    345,575.85x = 68,529,151,812.21
  5. Step 5: Solve for x
    x = 68,529,151,812.21/345,575.85
  6. Step 6: Final answer
    x = 198,304.23

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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.