Home / 385,989.24-579,149.10-161,402.16

Finding the Fourth Proportional to 385,989.24, 579,149.10 and 161,402.16

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Solution

The fourth proportional to 385,989.24, 579,149.10 and 161,402.16 is: 242,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,989.24 : 579,149.10 = 161,402.16 : x
  2. Step 2: Convert to fraction form
    385,989.24/579,149.10 = 161,402.16/x
  3. Step 3: Cross multiply
    385,989.24x = 579,149.10 × 161,402.16
  4. Step 4: Simplify right side
    385,989.24x = 93,475,915,702.06
  5. Step 5: Solve for x
    x = 93,475,915,702.06/385,989.24
  6. Step 6: Final answer
    x = 242,172.34

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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.