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Finding the Fourth Proportional to 302,604.30, 453,906.45 and 80,988.30

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Solution

The fourth proportional to 302,604.30, 453,906.45 and 80,988.30 is: 121,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,604.30 : 453,906.45 = 80,988.30 : x
  2. Step 2: Convert to fraction form
    302,604.30/453,906.45 = 80,988.30/x
  3. Step 3: Cross multiply
    302,604.30x = 453,906.45 × 80,988.30
  4. Step 4: Simplify right side
    302,604.30x = 36,761,111,744.54
  5. Step 5: Solve for x
    x = 36,761,111,744.54/302,604.30
  6. Step 6: Final answer
    x = 121,482.45

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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.