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Finding the Fourth Proportional to 239,920.80, 360,010.80 and 99,693.60

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Solution

The fourth proportional to 239,920.80, 360,010.80 and 99,693.60 is: 149,594.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,920.80 : 360,010.80 = 99,693.60 : x
  2. Step 2: Convert to fraction form
    239,920.80/360,010.80 = 99,693.60/x
  3. Step 3: Cross multiply
    239,920.80x = 360,010.80 × 99,693.60
  4. Step 4: Simplify right side
    239,920.80x = 35,890,772,690.88
  5. Step 5: Solve for x
    x = 35,890,772,690.88/239,920.80
  6. Step 6: Final answer
    x = 149,594.25

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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.