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Finding the Fourth Proportional to 302,502.40, 453,062.40 and 178,086.40

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Solution

The fourth proportional to 302,502.40, 453,062.40 and 178,086.40 is: 266,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,502.40 : 453,062.40 = 178,086.40 : x
  2. Step 2: Convert to fraction form
    302,502.40/453,062.40 = 178,086.40/x
  3. Step 3: Cross multiply
    302,502.40x = 453,062.40 × 178,086.40
  4. Step 4: Simplify right side
    302,502.40x = 80,684,251,791.36
  5. Step 5: Solve for x
    x = 80,684,251,791.36/302,502.40
  6. Step 6: Final answer
    x = 266,722.68

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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.