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Finding the Fourth Proportional to 230,112.90, 344,964.15 and 89,838.90

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Solution

The fourth proportional to 230,112.90, 344,964.15 and 89,838.90 is: 134,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,112.90 : 344,964.15 = 89,838.90 : x
  2. Step 2: Convert to fraction form
    230,112.90/344,964.15 = 89,838.90/x
  3. Step 3: Cross multiply
    230,112.90x = 344,964.15 × 89,838.90
  4. Step 4: Simplify right side
    230,112.90x = 30,991,199,775.44
  5. Step 5: Solve for x
    x = 30,991,199,775.44/230,112.90
  6. Step 6: Final answer
    x = 134,678.24

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1.5x scale

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.