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Finding the Fourth Proportional to 348,753, 523,134.36 and 99,435

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Solution

The fourth proportional to 348,753, 523,134.36 and 99,435 is: 149,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,753 : 523,134.36 = 99,435 : x
  2. Step 2: Convert to fraction form
    348,753/523,134.36 = 99,435/x
  3. Step 3: Cross multiply
    348,753x = 523,134.36 × 99,435
  4. Step 4: Simplify right side
    348,753x = 52,017,865,086.60
  5. Step 5: Solve for x
    x = 52,017,865,086.60/348,753
  6. Step 6: Final answer
    x = 149,153.89

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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.