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Finding the Fourth Proportional to 418,316.52, 577,280.46 and 227,329.90

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Solution

The fourth proportional to 418,316.52, 577,280.46 and 227,329.90 is: 313,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,316.52 : 577,280.46 = 227,329.90 : x
  2. Step 2: Convert to fraction form
    418,316.52/577,280.46 = 227,329.90/x
  3. Step 3: Cross multiply
    418,316.52x = 577,280.46 × 227,329.90
  4. Step 4: Simplify right side
    418,316.52x = 131,233,109,243.75
  5. Step 5: Solve for x
    x = 131,233,109,243.75/418,316.52
  6. Step 6: Final answer
    x = 313,717.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.