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Finding the Fourth Proportional to 292,331.87, 403,417.75 and 158,195.87

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Solution

The fourth proportional to 292,331.87, 403,417.75 and 158,195.87 is: 218,310.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,331.87 : 403,417.75 = 158,195.87 : x
  2. Step 2: Convert to fraction form
    292,331.87/403,417.75 = 158,195.87/x
  3. Step 3: Cross multiply
    292,331.87x = 403,417.75 × 158,195.87
  4. Step 4: Simplify right side
    292,331.87x = 63,819,021,934.69
  5. Step 5: Solve for x
    x = 63,819,021,934.69/292,331.87
  6. Step 6: Final answer
    x = 218,310.18

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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.