Home / 238,723.28-358,108.30-86,961.60

Finding the Fourth Proportional to 238,723.28, 358,108.30 and 86,961.60

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Solution

The fourth proportional to 238,723.28, 358,108.30 and 86,961.60 is: 130,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,723.28 : 358,108.30 = 86,961.60 : x
  2. Step 2: Convert to fraction form
    238,723.28/358,108.30 = 86,961.60/x
  3. Step 3: Cross multiply
    238,723.28x = 358,108.30 × 86,961.60
  4. Step 4: Simplify right side
    238,723.28x = 31,141,670,741.28
  5. Step 5: Solve for x
    x = 31,141,670,741.28/238,723.28
  6. Step 6: Final answer
    x = 130,450.92

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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.