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Finding the Fourth Proportional to 487,283.98, 730,435.13 and 203,131.73

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Solution

The fourth proportional to 487,283.98, 730,435.13 and 203,131.73 is: 304,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,283.98 : 730,435.13 = 203,131.73 : x
  2. Step 2: Convert to fraction form
    487,283.98/730,435.13 = 203,131.73/x
  3. Step 3: Cross multiply
    487,283.98x = 730,435.13 × 203,131.73
  4. Step 4: Simplify right side
    487,283.98x = 148,374,551,609.68
  5. Step 5: Solve for x
    x = 148,374,551,609.68/487,283.98
  6. Step 6: Final answer
    x = 304,492.98

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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.