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Finding the Fourth Proportional to 418,480.40, 577,508.66 and 227,497.90

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Solution

The fourth proportional to 418,480.40, 577,508.66 and 227,497.90 is: 313,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,480.40 : 577,508.66 = 227,497.90 : x
  2. Step 2: Convert to fraction form
    418,480.40/577,508.66 = 227,497.90/x
  3. Step 3: Cross multiply
    418,480.40x = 577,508.66 × 227,497.90
  4. Step 4: Simplify right side
    418,480.40x = 131,382,007,381.81
  5. Step 5: Solve for x
    x = 131,382,007,381.81/418,480.40
  6. Step 6: Final answer
    x = 313,950.21

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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.