Home / 290,545.29-435,568.30-100,981.03

Finding the Fourth Proportional to 290,545.29, 435,568.30 and 100,981.03

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Solution

The fourth proportional to 290,545.29, 435,568.30 and 100,981.03 is: 151,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,545.29 : 435,568.30 = 100,981.03 : x
  2. Step 2: Convert to fraction form
    290,545.29/435,568.30 = 100,981.03/x
  3. Step 3: Cross multiply
    290,545.29x = 435,568.30 × 100,981.03
  4. Step 4: Simplify right side
    290,545.29x = 43,984,135,569.35
  5. Step 5: Solve for x
    x = 43,984,135,569.35/290,545.29
  6. Step 6: Final answer
    x = 151,384.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.