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Finding the Fourth Proportional to 349,060, 523,590 and 112,426.60

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Solution

The fourth proportional to 349,060, 523,590 and 112,426.60 is: 168,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,060 : 523,590 = 112,426.60 : x
  2. Step 2: Convert to fraction form
    349,060/523,590 = 112,426.60/x
  3. Step 3: Cross multiply
    349,060x = 523,590 × 112,426.60
  4. Step 4: Simplify right side
    349,060x = 58,865,443,494
  5. Step 5: Solve for x
    x = 58,865,443,494/349,060
  6. Step 6: Final answer
    x = 168,639.90

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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.