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Finding the Fourth Proportional to 345,552.68, 518,562.57 and 120,915.06

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Solution

The fourth proportional to 345,552.68, 518,562.57 and 120,915.06 is: 181,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,552.68 : 518,562.57 = 120,915.06 : x
  2. Step 2: Convert to fraction form
    345,552.68/518,562.57 = 120,915.06/x
  3. Step 3: Cross multiply
    345,552.68x = 518,562.57 × 120,915.06
  4. Step 4: Simplify right side
    345,552.68x = 62,702,025,691.04
  5. Step 5: Solve for x
    x = 62,702,025,691.04/345,552.68
  6. Step 6: Final answer
    x = 181,454.32

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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.