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Finding the Fourth Proportional to 418,351.40, 577,329.41 and 227,364.80

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Solution

The fourth proportional to 418,351.40, 577,329.41 and 227,364.80 is: 313,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,351.40 : 577,329.41 = 227,364.80 : x
  2. Step 2: Convert to fraction form
    418,351.40/577,329.41 = 227,364.80/x
  3. Step 3: Cross multiply
    418,351.40x = 577,329.41 × 227,364.80
  4. Step 4: Simplify right side
    418,351.40x = 131,264,384,701.94
  5. Step 5: Solve for x
    x = 131,264,384,701.94/418,351.40
  6. Step 6: Final answer
    x = 313,765.85

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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.