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Finding the Fourth Proportional to 348,750.18, 523,130.13 and 99,432.18

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Solution

The fourth proportional to 348,750.18, 523,130.13 and 99,432.18 is: 149,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,750.18 : 523,130.13 = 99,432.18 : x
  2. Step 2: Convert to fraction form
    348,750.18/523,130.13 = 99,432.18/x
  3. Step 3: Cross multiply
    348,750.18x = 523,130.13 × 99,432.18
  4. Step 4: Simplify right side
    348,750.18x = 52,015,969,249.58
  5. Step 5: Solve for x
    x = 52,015,969,249.58/348,750.18
  6. Step 6: Final answer
    x = 149,149.66

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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.