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Finding the Fourth Proportional to 245,332.75, 367,999.13 and 79,120.75

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Solution

The fourth proportional to 245,332.75, 367,999.13 and 79,120.75 is: 118,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,332.75 : 367,999.13 = 79,120.75 : x
  2. Step 2: Convert to fraction form
    245,332.75/367,999.13 = 79,120.75/x
  3. Step 3: Cross multiply
    245,332.75x = 367,999.13 × 79,120.75
  4. Step 4: Simplify right side
    245,332.75x = 29,116,367,164.95
  5. Step 5: Solve for x
    x = 29,116,367,164.95/245,332.75
  6. Step 6: Final answer
    x = 118,681.13

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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.