Home / 385,185.48-577,791-132,463.44

Finding the Fourth Proportional to 385,185.48, 577,791 and 132,463.44

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Solution

The fourth proportional to 385,185.48, 577,791 and 132,463.44 is: 198,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,185.48 : 577,791 = 132,463.44 : x
  2. Step 2: Convert to fraction form
    385,185.48/577,791 = 132,463.44/x
  3. Step 3: Cross multiply
    385,185.48x = 577,791 × 132,463.44
  4. Step 4: Simplify right side
    385,185.48x = 76,536,183,461.04
  5. Step 5: Solve for x
    x = 76,536,183,461.04/385,185.48
  6. Step 6: Final answer
    x = 198,699.55

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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.