Home / 255,363.08-352,397.75-140,639.54

Finding the Fourth Proportional to 255,363.08, 352,397.75 and 140,639.54

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Solution

The fourth proportional to 255,363.08, 352,397.75 and 140,639.54 is: 194,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,363.08 : 352,397.75 = 140,639.54 : x
  2. Step 2: Convert to fraction form
    255,363.08/352,397.75 = 140,639.54/x
  3. Step 3: Cross multiply
    255,363.08x = 352,397.75 × 140,639.54
  4. Step 4: Simplify right side
    255,363.08x = 49,561,057,634.83
  5. Step 5: Solve for x
    x = 49,561,057,634.83/255,363.08
  6. Step 6: Final answer
    x = 194,080.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.