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Finding the Fourth Proportional to 263,630.61, 363,810.60 and 142,772.13

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Solution

The fourth proportional to 263,630.61, 363,810.60 and 142,772.13 is: 197,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,630.61 : 363,810.60 = 142,772.13 : x
  2. Step 2: Convert to fraction form
    263,630.61/363,810.60 = 142,772.13/x
  3. Step 3: Cross multiply
    263,630.61x = 363,810.60 × 142,772.13
  4. Step 4: Simplify right side
    263,630.61x = 51,942,014,278.58
  5. Step 5: Solve for x
    x = 51,942,014,278.58/263,630.61
  6. Step 6: Final answer
    x = 197,025.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.