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Finding the Fourth Proportional to 418,649.80, 577,740.84 and 227,667.34

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Solution

The fourth proportional to 418,649.80, 577,740.84 and 227,667.34 is: 314,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,649.80 : 577,740.84 = 227,667.34 : x
  2. Step 2: Convert to fraction form
    418,649.80/577,740.84 = 227,667.34/x
  3. Step 3: Cross multiply
    418,649.80x = 577,740.84 × 227,667.34
  4. Step 4: Simplify right side
    418,649.80x = 131,532,720,252.17
  5. Step 5: Solve for x
    x = 131,532,720,252.17/418,649.80
  6. Step 6: Final answer
    x = 314,183.17

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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.