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Finding the Fourth Proportional to 383,988.92, 576,057.51 and 147,313.13

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Solution

The fourth proportional to 383,988.92, 576,057.51 and 147,313.13 is: 220,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,988.92 : 576,057.51 = 147,313.13 : x
  2. Step 2: Convert to fraction form
    383,988.92/576,057.51 = 147,313.13/x
  3. Step 3: Cross multiply
    383,988.92x = 576,057.51 × 147,313.13
  4. Step 4: Simplify right side
    383,988.92x = 84,860,831,977.82
  5. Step 5: Solve for x
    x = 84,860,831,977.82/383,988.92
  6. Step 6: Final answer
    x = 220,998.13

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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.