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Finding the Fourth Proportional to 235,473.60, 353,210.40 and 135,940.80

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Solution

The fourth proportional to 235,473.60, 353,210.40 and 135,940.80 is: 203,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,473.60 : 353,210.40 = 135,940.80 : x
  2. Step 2: Convert to fraction form
    235,473.60/353,210.40 = 135,940.80/x
  3. Step 3: Cross multiply
    235,473.60x = 353,210.40 × 135,940.80
  4. Step 4: Simplify right side
    235,473.60x = 48,015,704,344.32
  5. Step 5: Solve for x
    x = 48,015,704,344.32/235,473.60
  6. Step 6: Final answer
    x = 203,911.20

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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.