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Finding the Fourth Proportional to 348,820.20, 523,230.30 and 342,915.30

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Solution

The fourth proportional to 348,820.20, 523,230.30 and 342,915.30 is: 514,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,820.20 : 523,230.30 = 342,915.30 : x
  2. Step 2: Convert to fraction form
    348,820.20/523,230.30 = 342,915.30/x
  3. Step 3: Cross multiply
    348,820.20x = 523,230.30 × 342,915.30
  4. Step 4: Simplify right side
    348,820.20x = 179,423,675,293.59
  5. Step 5: Solve for x
    x = 179,423,675,293.59/348,820.20
  6. Step 6: Final answer
    x = 514,372.95

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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.