Home / 312,542.19-431,310.30-169,302.24

Finding the Fourth Proportional to 312,542.19, 431,310.30 and 169,302.24

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Solution

The fourth proportional to 312,542.19, 431,310.30 and 169,302.24 is: 233,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,542.19 : 431,310.30 = 169,302.24 : x
  2. Step 2: Convert to fraction form
    312,542.19/431,310.30 = 169,302.24/x
  3. Step 3: Cross multiply
    312,542.19x = 431,310.30 × 169,302.24
  4. Step 4: Simplify right side
    312,542.19x = 73,021,799,925.07
  5. Step 5: Solve for x
    x = 73,021,799,925.07/312,542.19
  6. Step 6: Final answer
    x = 233,638.22

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Half scale
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Double scale
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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.