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Finding the Fourth Proportional to 116,280.20, 174,420.30 and 28,728.20

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Solution

The fourth proportional to 116,280.20, 174,420.30 and 28,728.20 is: 43,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,280.20 : 174,420.30 = 28,728.20 : x
  2. Step 2: Convert to fraction form
    116,280.20/174,420.30 = 28,728.20/x
  3. Step 3: Cross multiply
    116,280.20x = 174,420.30 × 28,728.20
  4. Step 4: Simplify right side
    116,280.20x = 5,010,781,262.46
  5. Step 5: Solve for x
    x = 5,010,781,262.46/116,280.20
  6. Step 6: Final answer
    x = 43,092.30

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1.5x scale

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.