Home / 255,849.03-353,070.90-142,671.78

Finding the Fourth Proportional to 255,849.03, 353,070.90 and 142,671.78

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Solution

The fourth proportional to 255,849.03, 353,070.90 and 142,671.78 is: 196,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,849.03 : 353,070.90 = 142,671.78 : x
  2. Step 2: Convert to fraction form
    255,849.03/353,070.90 = 142,671.78/x
  3. Step 3: Cross multiply
    255,849.03x = 353,070.90 × 142,671.78
  4. Step 4: Simplify right side
    255,849.03x = 50,373,253,769.20
  5. Step 5: Solve for x
    x = 50,373,253,769.20/255,849.03
  6. Step 6: Final answer
    x = 196,886.63

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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.