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Finding the Fourth Proportional to 177,279.69, 265,698.12 and 113,931.21

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Solution

The fourth proportional to 177,279.69, 265,698.12 and 113,931.21 is: 170,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,279.69 : 265,698.12 = 113,931.21 : x
  2. Step 2: Convert to fraction form
    177,279.69/265,698.12 = 113,931.21/x
  3. Step 3: Cross multiply
    177,279.69x = 265,698.12 × 113,931.21
  4. Step 4: Simplify right side
    177,279.69x = 30,271,308,306.33
  5. Step 5: Solve for x
    x = 30,271,308,306.33/177,279.69
  6. Step 6: Final answer
    x = 170,754.52

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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.