Home / 385,747.18-578,340.45-161,171.84

Finding the Fourth Proportional to 385,747.18, 578,340.45 and 161,171.84

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Solution

The fourth proportional to 385,747.18, 578,340.45 and 161,171.84 is: 241,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,747.18 : 578,340.45 = 161,171.84 : x
  2. Step 2: Convert to fraction form
    385,747.18/578,340.45 = 161,171.84/x
  3. Step 3: Cross multiply
    385,747.18x = 578,340.45 × 161,171.84
  4. Step 4: Simplify right side
    385,747.18x = 93,212,195,918.78
  5. Step 5: Solve for x
    x = 93,212,195,918.78/385,747.18
  6. Step 6: Final answer
    x = 241,640.64

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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.