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Finding the Fourth Proportional to 290,225.95, 400,489.85 and 162,876.94

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Solution

The fourth proportional to 290,225.95, 400,489.85 and 162,876.94 is: 224,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,225.95 : 400,489.85 = 162,876.94 : x
  2. Step 2: Convert to fraction form
    290,225.95/400,489.85 = 162,876.94/x
  3. Step 3: Cross multiply
    290,225.95x = 400,489.85 × 162,876.94
  4. Step 4: Simplify right side
    290,225.95x = 65,230,560,675.03
  5. Step 5: Solve for x
    x = 65,230,560,675.03/290,225.95
  6. Step 6: Final answer
    x = 224,757.85

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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.