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Finding the Fourth Proportional to 170,053.70, 255,080.55 and 143,809.70

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Solution

The fourth proportional to 170,053.70, 255,080.55 and 143,809.70 is: 215,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,053.70 : 255,080.55 = 143,809.70 : x
  2. Step 2: Convert to fraction form
    170,053.70/255,080.55 = 143,809.70/x
  3. Step 3: Cross multiply
    170,053.70x = 255,080.55 × 143,809.70
  4. Step 4: Simplify right side
    170,053.70x = 36,683,057,371.34
  5. Step 5: Solve for x
    x = 36,683,057,371.34/170,053.70
  6. Step 6: Final answer
    x = 215,714.55

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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.