Home / 261,485.82-360,839.07-145,192.05

Finding the Fourth Proportional to 261,485.82, 360,839.07 and 145,192.05

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Solution

The fourth proportional to 261,485.82, 360,839.07 and 145,192.05 is: 200,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,485.82 : 360,839.07 = 145,192.05 : x
  2. Step 2: Convert to fraction form
    261,485.82/360,839.07 = 145,192.05/x
  3. Step 3: Cross multiply
    261,485.82x = 360,839.07 × 145,192.05
  4. Step 4: Simplify right side
    261,485.82x = 52,390,964,293.39
  5. Step 5: Solve for x
    x = 52,390,964,293.39/261,485.82
  6. Step 6: Final answer
    x = 200,358.72

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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.