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Finding the Fourth Proportional to 290,287.65, 435,458.96 and 112,808.35

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Solution

The fourth proportional to 290,287.65, 435,458.96 and 112,808.35 is: 169,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,287.65 : 435,458.96 = 112,808.35 : x
  2. Step 2: Convert to fraction form
    290,287.65/435,458.96 = 112,808.35/x
  3. Step 3: Cross multiply
    290,287.65x = 435,458.96 × 112,808.35
  4. Step 4: Simplify right side
    290,287.65x = 49,123,404,028.98
  5. Step 5: Solve for x
    x = 49,123,404,028.98/290,287.65
  6. Step 6: Final answer
    x = 169,223.20

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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.