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Finding the Fourth Proportional to 520,250.88, 780,376.32 and 146,273.88

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Solution

The fourth proportional to 520,250.88, 780,376.32 and 146,273.88 is: 219,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,250.88 : 780,376.32 = 146,273.88 : x
  2. Step 2: Convert to fraction form
    520,250.88/780,376.32 = 146,273.88/x
  3. Step 3: Cross multiply
    520,250.88x = 780,376.32 × 146,273.88
  4. Step 4: Simplify right side
    520,250.88x = 114,148,672,186.52
  5. Step 5: Solve for x
    x = 114,148,672,186.52/520,250.88
  6. Step 6: Final answer
    x = 219,410.82

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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.