Home / 259,731.45-389,615.40-147,465.45

Finding the Fourth Proportional to 259,731.45, 389,615.40 and 147,465.45

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Solution

The fourth proportional to 259,731.45, 389,615.40 and 147,465.45 is: 221,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,731.45 : 389,615.40 = 147,465.45 : x
  2. Step 2: Convert to fraction form
    259,731.45/389,615.40 = 147,465.45/x
  3. Step 3: Cross multiply
    259,731.45x = 389,615.40 × 147,465.45
  4. Step 4: Simplify right side
    259,731.45x = 57,454,810,287.93
  5. Step 5: Solve for x
    x = 57,454,810,287.93/259,731.45
  6. Step 6: Final answer
    x = 221,208.52

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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.