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Finding the Fourth Proportional to 302,496.40, 453,744.60 and 279,686.80

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Solution

The fourth proportional to 302,496.40, 453,744.60 and 279,686.80 is: 419,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,496.40 : 453,744.60 = 279,686.80 : x
  2. Step 2: Convert to fraction form
    302,496.40/453,744.60 = 279,686.80/x
  3. Step 3: Cross multiply
    302,496.40x = 453,744.60 × 279,686.80
  4. Step 4: Simplify right side
    302,496.40x = 126,906,375,191.28
  5. Step 5: Solve for x
    x = 126,906,375,191.28/302,496.40
  6. Step 6: Final answer
    x = 419,530.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.