Home / 259,719.40-389,498.10-101,996.20

Finding the Fourth Proportional to 259,719.40, 389,498.10 and 101,996.20

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Solution

The fourth proportional to 259,719.40, 389,498.10 and 101,996.20 is: 152,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,719.40 : 389,498.10 = 101,996.20 : x
  2. Step 2: Convert to fraction form
    259,719.40/389,498.10 = 101,996.20/x
  3. Step 3: Cross multiply
    259,719.40x = 389,498.10 × 101,996.20
  4. Step 4: Simplify right side
    259,719.40x = 39,727,326,107.22
  5. Step 5: Solve for x
    x = 39,727,326,107.22/259,719.40
  6. Step 6: Final answer
    x = 152,962.49

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1.5x scale

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.