Home / 259,931.20-389,240.70-170,701.60

Finding the Fourth Proportional to 259,931.20, 389,240.70 and 170,701.60

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Solution

The fourth proportional to 259,931.20, 389,240.70 and 170,701.60 is: 255,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,931.20 : 389,240.70 = 170,701.60 : x
  2. Step 2: Convert to fraction form
    259,931.20/389,240.70 = 170,701.60/x
  3. Step 3: Cross multiply
    259,931.20x = 389,240.70 × 170,701.60
  4. Step 4: Simplify right side
    259,931.20x = 66,444,010,275.12
  5. Step 5: Solve for x
    x = 66,444,010,275.12/259,931.20
  6. Step 6: Final answer
    x = 255,621.53

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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.