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Finding the Fourth Proportional to 290,760.80, 435,962.58 and 113,060.66

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Solution

The fourth proportional to 290,760.80, 435,962.58 and 113,060.66 is: 169,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,760.80 : 435,962.58 = 113,060.66 : x
  2. Step 2: Convert to fraction form
    290,760.80/435,962.58 = 113,060.66/x
  3. Step 3: Cross multiply
    290,760.80x = 435,962.58 × 113,060.66
  4. Step 4: Simplify right side
    290,760.80x = 49,290,217,030.10
  5. Step 5: Solve for x
    x = 49,290,217,030.10/290,760.80
  6. Step 6: Final answer
    x = 169,521.53

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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.