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Finding the Fourth Proportional to 302,468.78, 453,668.60 and 80,870.06

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Solution

The fourth proportional to 302,468.78, 453,668.60 and 80,870.06 is: 121,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,468.78 : 453,668.60 = 80,870.06 : x
  2. Step 2: Convert to fraction form
    302,468.78/453,668.60 = 80,870.06/x
  3. Step 3: Cross multiply
    302,468.78x = 453,668.60 × 80,870.06
  4. Step 4: Simplify right side
    302,468.78x = 36,688,206,902.12
  5. Step 5: Solve for x
    x = 36,688,206,902.12/302,468.78
  6. Step 6: Final answer
    x = 121,295.85

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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.