Home / 248,139.20-342,510.02-140,780.56

Finding the Fourth Proportional to 248,139.20, 342,510.02 and 140,780.56

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Solution

The fourth proportional to 248,139.20, 342,510.02 and 140,780.56 is: 194,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,139.20 : 342,510.02 = 140,780.56 : x
  2. Step 2: Convert to fraction form
    248,139.20/342,510.02 = 140,780.56/x
  3. Step 3: Cross multiply
    248,139.20x = 342,510.02 × 140,780.56
  4. Step 4: Simplify right side
    248,139.20x = 48,218,752,421.21
  5. Step 5: Solve for x
    x = 48,218,752,421.21/248,139.20
  6. Step 6: Final answer
    x = 194,321.38

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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.