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Finding the Fourth Proportional to 290,364.68, 400,746.66 and 177,253.04

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Solution

The fourth proportional to 290,364.68, 400,746.66 and 177,253.04 is: 244,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,364.68 : 400,746.66 = 177,253.04 : x
  2. Step 2: Convert to fraction form
    290,364.68/400,746.66 = 177,253.04/x
  3. Step 3: Cross multiply
    290,364.68x = 400,746.66 × 177,253.04
  4. Step 4: Simplify right side
    290,364.68x = 71,033,563,754.85
  5. Step 5: Solve for x
    x = 71,033,563,754.85/290,364.68
  6. Step 6: Final answer
    x = 244,635.69

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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.