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Finding the Fourth Proportional to 228,423.60, 342,635.40 and 103,764.60

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Solution

The fourth proportional to 228,423.60, 342,635.40 and 103,764.60 is: 155,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,423.60 : 342,635.40 = 103,764.60 : x
  2. Step 2: Convert to fraction form
    228,423.60/342,635.40 = 103,764.60/x
  3. Step 3: Cross multiply
    228,423.60x = 342,635.40 × 103,764.60
  4. Step 4: Simplify right side
    228,423.60x = 35,553,425,226.84
  5. Step 5: Solve for x
    x = 35,553,425,226.84/228,423.60
  6. Step 6: Final answer
    x = 155,646.90

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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.