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Finding the Fourth Proportional to 342,387.12, 513,579.24 and 93,068.40

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Solution

The fourth proportional to 342,387.12, 513,579.24 and 93,068.40 is: 139,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,387.12 : 513,579.24 = 93,068.40 : x
  2. Step 2: Convert to fraction form
    342,387.12/513,579.24 = 93,068.40/x
  3. Step 3: Cross multiply
    342,387.12x = 513,579.24 × 93,068.40
  4. Step 4: Simplify right side
    342,387.12x = 47,797,998,140.02
  5. Step 5: Solve for x
    x = 47,797,998,140.02/342,387.12
  6. Step 6: Final answer
    x = 139,602.21

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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.