Home / 342,922.60-513,509.10-272,938.60

Finding the Fourth Proportional to 342,922.60, 513,509.10 and 272,938.60

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Solution

The fourth proportional to 342,922.60, 513,509.10 and 272,938.60 is: 408,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,922.60 : 513,509.10 = 272,938.60 : x
  2. Step 2: Convert to fraction form
    342,922.60/513,509.10 = 272,938.60/x
  3. Step 3: Cross multiply
    342,922.60x = 513,509.10 × 272,938.60
  4. Step 4: Simplify right side
    342,922.60x = 140,156,454,841.26
  5. Step 5: Solve for x
    x = 140,156,454,841.26/342,922.60
  6. Step 6: Final answer
    x = 408,711.63

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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.