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Finding the Fourth Proportional to 418,262.21, 577,205.49 and 227,275.59

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Solution

The fourth proportional to 418,262.21, 577,205.49 and 227,275.59 is: 313,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,262.21 : 577,205.49 = 227,275.59 : x
  2. Step 2: Convert to fraction form
    418,262.21/577,205.49 = 227,275.59/x
  3. Step 3: Cross multiply
    418,262.21x = 577,205.49 × 227,275.59
  4. Step 4: Simplify right side
    418,262.21x = 131,184,718,290.99
  5. Step 5: Solve for x
    x = 131,184,718,290.99/418,262.21
  6. Step 6: Final answer
    x = 313,642.29

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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.