Home / 290,177.40-435,003.48-103,145.16

Finding the Fourth Proportional to 290,177.40, 435,003.48 and 103,145.16

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Solution

The fourth proportional to 290,177.40, 435,003.48 and 103,145.16 is: 154,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,177.40 : 435,003.48 = 103,145.16 : x
  2. Step 2: Convert to fraction form
    290,177.40/435,003.48 = 103,145.16/x
  3. Step 3: Cross multiply
    290,177.40x = 435,003.48 × 103,145.16
  4. Step 4: Simplify right side
    290,177.40x = 44,868,503,545.16
  5. Step 5: Solve for x
    x = 44,868,503,545.16/290,177.40
  6. Step 6: Final answer
    x = 154,624.39

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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.