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Finding the Fourth Proportional to 177,292.80, 265,939.20 and 83,980.80

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Solution

The fourth proportional to 177,292.80, 265,939.20 and 83,980.80 is: 125,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,292.80 : 265,939.20 = 83,980.80 : x
  2. Step 2: Convert to fraction form
    177,292.80/265,939.20 = 83,980.80/x
  3. Step 3: Cross multiply
    177,292.80x = 265,939.20 × 83,980.80
  4. Step 4: Simplify right side
    177,292.80x = 22,333,786,767.36
  5. Step 5: Solve for x
    x = 22,333,786,767.36/177,292.80
  6. Step 6: Final answer
    x = 125,971.20

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1.5x scale

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.