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Finding the Fourth Proportional to 302,473.80, 453,710.70 and 272,406.60

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Solution

The fourth proportional to 302,473.80, 453,710.70 and 272,406.60 is: 408,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,473.80 : 453,710.70 = 272,406.60 : x
  2. Step 2: Convert to fraction form
    302,473.80/453,710.70 = 272,406.60/x
  3. Step 3: Cross multiply
    302,473.80x = 453,710.70 × 272,406.60
  4. Step 4: Simplify right side
    302,473.80x = 123,593,789,170.62
  5. Step 5: Solve for x
    x = 123,593,789,170.62/302,473.80
  6. Step 6: Final answer
    x = 408,609.90

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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.