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Finding the Fourth Proportional to 170,277.80, 255,416.70 and 117,789.80

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Solution

The fourth proportional to 170,277.80, 255,416.70 and 117,789.80 is: 176,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,277.80 : 255,416.70 = 117,789.80 : x
  2. Step 2: Convert to fraction form
    170,277.80/255,416.70 = 117,789.80/x
  3. Step 3: Cross multiply
    170,277.80x = 255,416.70 × 117,789.80
  4. Step 4: Simplify right side
    170,277.80x = 30,085,482,009.66
  5. Step 5: Solve for x
    x = 30,085,482,009.66/170,277.80
  6. Step 6: Final answer
    x = 176,684.70

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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.