Home / 385,972.16-578,760.80-161,271.27

Finding the Fourth Proportional to 385,972.16, 578,760.80 and 161,271.27

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Solution

The fourth proportional to 385,972.16, 578,760.80 and 161,271.27 is: 241,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,972.16 : 578,760.80 = 161,271.27 : x
  2. Step 2: Convert to fraction form
    385,972.16/578,760.80 = 161,271.27/x
  3. Step 3: Cross multiply
    385,972.16x = 578,760.80 × 161,271.27
  4. Step 4: Simplify right side
    385,972.16x = 93,337,488,435.86
  5. Step 5: Solve for x
    x = 93,337,488,435.86/385,972.16
  6. Step 6: Final answer
    x = 241,824.41

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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.