Home / 342,788.12-514,061.76-102,830.48

Finding the Fourth Proportional to 342,788.12, 514,061.76 and 102,830.48

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Solution

The fourth proportional to 342,788.12, 514,061.76 and 102,830.48 is: 154,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,788.12 : 514,061.76 = 102,830.48 : x
  2. Step 2: Convert to fraction form
    342,788.12/514,061.76 = 102,830.48/x
  3. Step 3: Cross multiply
    342,788.12x = 514,061.76 × 102,830.48
  4. Step 4: Simplify right side
    342,788.12x = 52,861,217,530.44
  5. Step 5: Solve for x
    x = 52,861,217,530.44/342,788.12
  6. Step 6: Final answer
    x = 154,209.60

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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.