Home / 418,261.90-577,205.07-227,275.29

Finding the Fourth Proportional to 418,261.90, 577,205.07 and 227,275.29

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Solution

The fourth proportional to 418,261.90, 577,205.07 and 227,275.29 is: 313,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,261.90 : 577,205.07 = 227,275.29 : x
  2. Step 2: Convert to fraction form
    418,261.90/577,205.07 = 227,275.29/x
  3. Step 3: Cross multiply
    418,261.90x = 577,205.07 × 227,275.29
  4. Step 4: Simplify right side
    418,261.90x = 131,184,449,673.72
  5. Step 5: Solve for x
    x = 131,184,449,673.72/418,261.90
  6. Step 6: Final answer
    x = 313,641.88

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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.