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Finding the Fourth Proportional to 418,374.12, 577,360.80 and 227,387.56

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Solution

The fourth proportional to 418,374.12, 577,360.80 and 227,387.56 is: 313,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,374.12 : 577,360.80 = 227,387.56 : x
  2. Step 2: Convert to fraction form
    418,374.12/577,360.80 = 227,387.56/x
  3. Step 3: Cross multiply
    418,374.12x = 577,360.80 × 227,387.56
  4. Step 4: Simplify right side
    418,374.12x = 131,284,663,551.65
  5. Step 5: Solve for x
    x = 131,284,663,551.65/418,374.12
  6. Step 6: Final answer
    x = 313,797.29

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1.5x scale

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.