Home / 218,961.34-302,167.20-123,469.63

Finding the Fourth Proportional to 218,961.34, 302,167.20 and 123,469.63

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Solution

The fourth proportional to 218,961.34, 302,167.20 and 123,469.63 is: 170,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,961.34 : 302,167.20 = 123,469.63 : x
  2. Step 2: Convert to fraction form
    218,961.34/302,167.20 = 123,469.63/x
  3. Step 3: Cross multiply
    218,961.34x = 302,167.20 × 123,469.63
  4. Step 4: Simplify right side
    218,961.34x = 37,308,472,382.14
  5. Step 5: Solve for x
    x = 37,308,472,382.14/218,961.34
  6. Step 6: Final answer
    x = 170,388.40

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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.