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Finding the Fourth Proportional to 302,005.63, 453,008.44 and 80,389.63

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Solution

The fourth proportional to 302,005.63, 453,008.44 and 80,389.63 is: 120,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,005.63 : 453,008.44 = 80,389.63 : x
  2. Step 2: Convert to fraction form
    302,005.63/453,008.44 = 80,389.63/x
  3. Step 3: Cross multiply
    302,005.63x = 453,008.44 × 80,389.63
  4. Step 4: Simplify right side
    302,005.63x = 36,417,178,613.44
  5. Step 5: Solve for x
    x = 36,417,178,613.44/302,005.63
  6. Step 6: Final answer
    x = 120,584.44

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Similar ratio
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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.