Home / 259,060.81-388,643.60-109,301.46

Finding the Fourth Proportional to 259,060.81, 388,643.60 and 109,301.46

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Solution

The fourth proportional to 259,060.81, 388,643.60 and 109,301.46 is: 163,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,060.81 : 388,643.60 = 109,301.46 : x
  2. Step 2: Convert to fraction form
    259,060.81/388,643.60 = 109,301.46/x
  3. Step 3: Cross multiply
    259,060.81x = 388,643.60 × 109,301.46
  4. Step 4: Simplify right side
    259,060.81x = 42,479,312,353.15
  5. Step 5: Solve for x
    x = 42,479,312,353.15/259,060.81
  6. Step 6: Final answer
    x = 163,974.29

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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.