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Finding the Fourth Proportional to 290,292.40, 435,466.08 and 112,813.10

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Solution

The fourth proportional to 290,292.40, 435,466.08 and 112,813.10 is: 169,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,292.40 : 435,466.08 = 112,813.10 : x
  2. Step 2: Convert to fraction form
    290,292.40/435,466.08 = 112,813.10/x
  3. Step 3: Cross multiply
    290,292.40x = 435,466.08 × 112,813.10
  4. Step 4: Simplify right side
    290,292.40x = 49,126,278,429.65
  5. Step 5: Solve for x
    x = 49,126,278,429.65/290,292.40
  6. Step 6: Final answer
    x = 169,230.33

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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.