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Finding the Fourth Proportional to 290,225.70, 400,489.49 and 162,876.69

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Solution

The fourth proportional to 290,225.70, 400,489.49 and 162,876.69 is: 224,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,225.70 : 400,489.49 = 162,876.69 : x
  2. Step 2: Convert to fraction form
    290,225.70/400,489.49 = 162,876.69/x
  3. Step 3: Cross multiply
    290,225.70x = 400,489.49 × 162,876.69
  4. Step 4: Simplify right side
    290,225.70x = 65,230,402,510.99
  5. Step 5: Solve for x
    x = 65,230,402,510.99/290,225.70
  6. Step 6: Final answer
    x = 224,757.50

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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.