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Finding the Fourth Proportional to 228,040.40, 342,098.04 and 70,268.88

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Solution

The fourth proportional to 228,040.40, 342,098.04 and 70,268.88 is: 105,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,040.40 : 342,098.04 = 70,268.88 : x
  2. Step 2: Convert to fraction form
    228,040.40/342,098.04 = 70,268.88/x
  3. Step 3: Cross multiply
    228,040.40x = 342,098.04 × 70,268.88
  4. Step 4: Simplify right side
    228,040.40x = 24,038,846,121.00
  5. Step 5: Solve for x
    x = 24,038,846,121.00/228,040.40
  6. Step 6: Final answer
    x = 105,414.86

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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.