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Finding the Fourth Proportional to 348,755.63, 523,138.31 and 99,437.63

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Solution

The fourth proportional to 348,755.63, 523,138.31 and 99,437.63 is: 149,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,755.63 : 523,138.31 = 99,437.63 : x
  2. Step 2: Convert to fraction form
    348,755.63/523,138.31 = 99,437.63/x
  3. Step 3: Cross multiply
    348,755.63x = 523,138.31 × 99,437.63
  4. Step 4: Simplify right side
    348,755.63x = 52,019,630,595.73
  5. Step 5: Solve for x
    x = 52,019,630,595.73/348,755.63
  6. Step 6: Final answer
    x = 149,157.83

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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.