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Finding the Fourth Proportional to 439,927.84, 659,595.52 and 203,140

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Solution

The fourth proportional to 439,927.84, 659,595.52 and 203,140 is: 304,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,927.84 : 659,595.52 = 203,140 : x
  2. Step 2: Convert to fraction form
    439,927.84/659,595.52 = 203,140/x
  3. Step 3: Cross multiply
    439,927.84x = 659,595.52 × 203,140
  4. Step 4: Simplify right side
    439,927.84x = 133,990,233,932.80
  5. Step 5: Solve for x
    x = 133,990,233,932.80/439,927.84
  6. Step 6: Final answer
    x = 304,573.21

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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.