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Finding the Fourth Proportional to 302,560.40, 453,149.40 and 178,144.40

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Solution

The fourth proportional to 302,560.40, 453,149.40 and 178,144.40 is: 266,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,560.40 : 453,149.40 = 178,144.40 : x
  2. Step 2: Convert to fraction form
    302,560.40/453,149.40 = 178,144.40/x
  3. Step 3: Cross multiply
    302,560.40x = 453,149.40 × 178,144.40
  4. Step 4: Simplify right side
    302,560.40x = 80,726,027,973.36
  5. Step 5: Solve for x
    x = 80,726,027,973.36/302,560.40
  6. Step 6: Final answer
    x = 266,809.63

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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.