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Finding the Fourth Proportional to 302,778.17, 454,170.72 and 129,646.59

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Solution

The fourth proportional to 302,778.17, 454,170.72 and 129,646.59 is: 194,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,778.17 : 454,170.72 = 129,646.59 : x
  2. Step 2: Convert to fraction form
    302,778.17/454,170.72 = 129,646.59/x
  3. Step 3: Cross multiply
    302,778.17x = 454,170.72 × 129,646.59
  4. Step 4: Simplify right side
    302,778.17x = 58,881,685,125.84
  5. Step 5: Solve for x
    x = 58,881,685,125.84/302,778.17
  6. Step 6: Final answer
    x = 194,471.37

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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.