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Finding the Fourth Proportional to 290,366.18, 400,748.73 and 177,254.54

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Solution

The fourth proportional to 290,366.18, 400,748.73 and 177,254.54 is: 244,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,366.18 : 400,748.73 = 177,254.54 : x
  2. Step 2: Convert to fraction form
    290,366.18/400,748.73 = 177,254.54/x
  3. Step 3: Cross multiply
    290,366.18x = 400,748.73 × 177,254.54
  4. Step 4: Simplify right side
    290,366.18x = 71,034,531,791.73
  5. Step 5: Solve for x
    x = 71,034,531,791.73/290,366.18
  6. Step 6: Final answer
    x = 244,637.76

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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.