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Finding the Fourth Proportional to 170,153.80, 255,230.70 and 117,009.70

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Solution

The fourth proportional to 170,153.80, 255,230.70 and 117,009.70 is: 175,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,153.80 : 255,230.70 = 117,009.70 : x
  2. Step 2: Convert to fraction form
    170,153.80/255,230.70 = 117,009.70/x
  3. Step 3: Cross multiply
    170,153.80x = 255,230.70 × 117,009.70
  4. Step 4: Simplify right side
    170,153.80x = 29,864,467,637.79
  5. Step 5: Solve for x
    x = 29,864,467,637.79/170,153.80
  6. Step 6: Final answer
    x = 175,514.55

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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.