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Finding the Fourth Proportional to 226,839.20, 340,258.80 and 155,980.40

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Solution

The fourth proportional to 226,839.20, 340,258.80 and 155,980.40 is: 233,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,839.20 : 340,258.80 = 155,980.40 : x
  2. Step 2: Convert to fraction form
    226,839.20/340,258.80 = 155,980.40/x
  3. Step 3: Cross multiply
    226,839.20x = 340,258.80 × 155,980.40
  4. Step 4: Simplify right side
    226,839.20x = 53,073,703,727.52
  5. Step 5: Solve for x
    x = 53,073,703,727.52/226,839.20
  6. Step 6: Final answer
    x = 233,970.60

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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.