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Finding the Fourth Proportional to 228,360.20, 342,540.30 and 103,701.20

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Solution

The fourth proportional to 228,360.20, 342,540.30 and 103,701.20 is: 155,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,360.20 : 342,540.30 = 103,701.20 : x
  2. Step 2: Convert to fraction form
    228,360.20/342,540.30 = 103,701.20/x
  3. Step 3: Cross multiply
    228,360.20x = 342,540.30 × 103,701.20
  4. Step 4: Simplify right side
    228,360.20x = 35,521,840,158.36
  5. Step 5: Solve for x
    x = 35,521,840,158.36/228,360.20
  6. Step 6: Final answer
    x = 155,551.80

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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.