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Finding the Fourth Proportional to 292,265.50, 403,326.39 and 158,129.50

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Solution

The fourth proportional to 292,265.50, 403,326.39 and 158,129.50 is: 218,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,265.50 : 403,326.39 = 158,129.50 : x
  2. Step 2: Convert to fraction form
    292,265.50/403,326.39 = 158,129.50/x
  3. Step 3: Cross multiply
    292,265.50x = 403,326.39 × 158,129.50
  4. Step 4: Simplify right side
    292,265.50x = 63,777,800,387.51
  5. Step 5: Solve for x
    x = 63,777,800,387.51/292,265.50
  6. Step 6: Final answer
    x = 218,218.71

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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.