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Finding the Fourth Proportional to 292,691.31, 403,914.11 and 158,555.31

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Solution

The fourth proportional to 292,691.31, 403,914.11 and 158,555.31 is: 218,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,691.31 : 403,914.11 = 158,555.31 : x
  2. Step 2: Convert to fraction form
    292,691.31/403,914.11 = 158,555.31/x
  3. Step 3: Cross multiply
    292,691.31x = 403,914.11 × 158,555.31
  4. Step 4: Simplify right side
    292,691.31x = 64,042,726,131.65
  5. Step 5: Solve for x
    x = 64,042,726,131.65/292,691.31
  6. Step 6: Final answer
    x = 218,806.38

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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.