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Finding the Fourth Proportional to 245,971.80, 368,979.30 and 75,232.08

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Solution

The fourth proportional to 245,971.80, 368,979.30 and 75,232.08 is: 112,854.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,971.80 : 368,979.30 = 75,232.08 : x
  2. Step 2: Convert to fraction form
    245,971.80/368,979.30 = 75,232.08/x
  3. Step 3: Cross multiply
    245,971.80x = 368,979.30 × 75,232.08
  4. Step 4: Simplify right side
    245,971.80x = 27,759,080,215.94
  5. Step 5: Solve for x
    x = 27,759,080,215.94/245,971.80
  6. Step 6: Final answer
    x = 112,854.73

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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.