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Finding the Fourth Proportional to 418,349.90, 577,327.34 and 227,363.30

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Solution

The fourth proportional to 418,349.90, 577,327.34 and 227,363.30 is: 313,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,349.90 : 577,327.34 = 227,363.30 : x
  2. Step 2: Convert to fraction form
    418,349.90/577,327.34 = 227,363.30/x
  3. Step 3: Cross multiply
    418,349.90x = 577,327.34 × 227,363.30
  4. Step 4: Simplify right side
    418,349.90x = 131,263,048,065.81
  5. Step 5: Solve for x
    x = 131,263,048,065.81/418,349.90
  6. Step 6: Final answer
    x = 313,763.78

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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.