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Finding the Fourth Proportional to 384,750.73, 531,296.46 and 239,803.90

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Solution

The fourth proportional to 384,750.73, 531,296.46 and 239,803.90 is: 331,141.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,750.73 : 531,296.46 = 239,803.90 : x
  2. Step 2: Convert to fraction form
    384,750.73/531,296.46 = 239,803.90/x
  3. Step 3: Cross multiply
    384,750.73x = 531,296.46 × 239,803.90
  4. Step 4: Simplify right side
    384,750.73x = 127,406,961,835.95
  5. Step 5: Solve for x
    x = 127,406,961,835.95/384,750.73
  6. Step 6: Final answer
    x = 331,141.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.