Home / 258,196.52-356,304.07-143,472.20

Finding the Fourth Proportional to 258,196.52, 356,304.07 and 143,472.20

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Solution

The fourth proportional to 258,196.52, 356,304.07 and 143,472.20 is: 197,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,196.52 : 356,304.07 = 143,472.20 : x
  2. Step 2: Convert to fraction form
    258,196.52/356,304.07 = 143,472.20/x
  3. Step 3: Cross multiply
    258,196.52x = 356,304.07 × 143,472.20
  4. Step 4: Simplify right side
    258,196.52x = 51,119,726,382.64
  5. Step 5: Solve for x
    x = 51,119,726,382.64/258,196.52
  6. Step 6: Final answer
    x = 197,987.67

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1.5x scale

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.