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Finding the Fourth Proportional to 302,479.78, 453,685.08 and 80,881.06

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Solution

The fourth proportional to 302,479.78, 453,685.08 and 80,881.06 is: 121,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,479.78 : 453,685.08 = 80,881.06 : x
  2. Step 2: Convert to fraction form
    302,479.78/453,685.08 = 80,881.06/x
  3. Step 3: Cross multiply
    302,479.78x = 453,685.08 × 80,881.06
  4. Step 4: Simplify right side
    302,479.78x = 36,694,530,176.58
  5. Step 5: Solve for x
    x = 36,694,530,176.58/302,479.78
  6. Step 6: Final answer
    x = 121,312.34

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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.