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Finding the Fourth Proportional to 228,353.70, 342,530.55 and 103,694.70

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Solution

The fourth proportional to 228,353.70, 342,530.55 and 103,694.70 is: 155,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,353.70 : 342,530.55 = 103,694.70 : x
  2. Step 2: Convert to fraction form
    228,353.70/342,530.55 = 103,694.70/x
  3. Step 3: Cross multiply
    228,353.70x = 342,530.55 × 103,694.70
  4. Step 4: Simplify right side
    228,353.70x = 35,518,602,623.09
  5. Step 5: Solve for x
    x = 35,518,602,623.09/228,353.70
  6. Step 6: Final answer
    x = 155,542.05

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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.