Home / 263,778.95-364,013.70-142,920.20

Finding the Fourth Proportional to 263,778.95, 364,013.70 and 142,920.20

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Solution

The fourth proportional to 263,778.95, 364,013.70 and 142,920.20 is: 197,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,778.95 : 364,013.70 = 142,920.20 : x
  2. Step 2: Convert to fraction form
    263,778.95/364,013.70 = 142,920.20/x
  3. Step 3: Cross multiply
    263,778.95x = 364,013.70 × 142,920.20
  4. Step 4: Simplify right side
    263,778.95x = 52,024,908,986.67
  5. Step 5: Solve for x
    x = 52,024,908,986.67/263,778.95
  6. Step 6: Final answer
    x = 197,229.20

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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.