Home / 385,984.74-579,142.35-161,397.66

Finding the Fourth Proportional to 385,984.74, 579,142.35 and 161,397.66

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Solution

The fourth proportional to 385,984.74, 579,142.35 and 161,397.66 is: 242,165.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,984.74 : 579,142.35 = 161,397.66 : x
  2. Step 2: Convert to fraction form
    385,984.74/579,142.35 = 161,397.66/x
  3. Step 3: Cross multiply
    385,984.74x = 579,142.35 × 161,397.66
  4. Step 4: Simplify right side
    385,984.74x = 93,472,220,096.90
  5. Step 5: Solve for x
    x = 93,472,220,096.90/385,984.74
  6. Step 6: Final answer
    x = 242,165.58

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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.