Home / 307,446.03-424,276.09-171,488.78

Finding the Fourth Proportional to 307,446.03, 424,276.09 and 171,488.78

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Solution

The fourth proportional to 307,446.03, 424,276.09 and 171,488.78 is: 236,654.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,446.03 : 424,276.09 = 171,488.78 : x
  2. Step 2: Convert to fraction form
    307,446.03/424,276.09 = 171,488.78/x
  3. Step 3: Cross multiply
    307,446.03x = 424,276.09 × 171,488.78
  4. Step 4: Simplify right side
    307,446.03x = 72,758,589,057.27
  5. Step 5: Solve for x
    x = 72,758,589,057.27/307,446.03
  6. Step 6: Final answer
    x = 236,654.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.