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Finding the Fourth Proportional to 290,340.41, 400,701.87 and 169,511.36

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Solution

The fourth proportional to 290,340.41, 400,701.87 and 169,511.36 is: 233,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,340.41 : 400,701.87 = 169,511.36 : x
  2. Step 2: Convert to fraction form
    290,340.41/400,701.87 = 169,511.36/x
  3. Step 3: Cross multiply
    290,340.41x = 400,701.87 × 169,511.36
  4. Step 4: Simplify right side
    290,340.41x = 67,923,516,934.73
  5. Step 5: Solve for x
    x = 67,923,516,934.73/290,340.41
  6. Step 6: Final answer
    x = 233,944.42

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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.