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Finding the Fourth Proportional to 348,755.64, 523,138.32 and 99,437.64

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Solution

The fourth proportional to 348,755.64, 523,138.32 and 99,437.64 is: 149,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,755.64 : 523,138.32 = 99,437.64 : x
  2. Step 2: Convert to fraction form
    348,755.64/523,138.32 = 99,437.64/x
  3. Step 3: Cross multiply
    348,755.64x = 523,138.32 × 99,437.64
  4. Step 4: Simplify right side
    348,755.64x = 52,019,639,934.36
  5. Step 5: Solve for x
    x = 52,019,639,934.36/348,755.64
  6. Step 6: Final answer
    x = 149,157.85

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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.