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Finding the Fourth Proportional to 290,011.38, 435,175.65 and 112,525.41

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Solution

The fourth proportional to 290,011.38, 435,175.65 and 112,525.41 is: 168,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,011.38 : 435,175.65 = 112,525.41 : x
  2. Step 2: Convert to fraction form
    290,011.38/435,175.65 = 112,525.41/x
  3. Step 3: Cross multiply
    290,011.38x = 435,175.65 × 112,525.41
  4. Step 4: Simplify right side
    290,011.38x = 48,968,318,438.27
  5. Step 5: Solve for x
    x = 48,968,318,438.27/290,011.38
  6. Step 6: Final answer
    x = 168,849.64

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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.