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Finding the Fourth Proportional to 418,637.35, 577,726.59 and 227,656.36

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Solution

The fourth proportional to 418,637.35, 577,726.59 and 227,656.36 is: 314,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,637.35 : 577,726.59 = 227,656.36 : x
  2. Step 2: Convert to fraction form
    418,637.35/577,726.59 = 227,656.36/x
  3. Step 3: Cross multiply
    418,637.35x = 577,726.59 × 227,656.36
  4. Step 4: Simplify right side
    418,637.35x = 131,523,132,554.61
  5. Step 5: Solve for x
    x = 131,523,132,554.61/418,637.35
  6. Step 6: Final answer
    x = 314,169.61

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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.