Home / 465,189.52-642,045.32-274,191.76

Finding the Fourth Proportional to 465,189.52, 642,045.32 and 274,191.76

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Solution

The fourth proportional to 465,189.52, 642,045.32 and 274,191.76 is: 378,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,189.52 : 642,045.32 = 274,191.76 : x
  2. Step 2: Convert to fraction form
    465,189.52/642,045.32 = 274,191.76/x
  3. Step 3: Cross multiply
    465,189.52x = 642,045.32 × 274,191.76
  4. Step 4: Simplify right side
    465,189.52x = 176,043,536,290.56
  5. Step 5: Solve for x
    x = 176,043,536,290.56/465,189.52
  6. Step 6: Final answer
    x = 378,434.01

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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.