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Finding the Fourth Proportional to 153,281.60, 229,922.40 and 115,956.80

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Solution

The fourth proportional to 153,281.60, 229,922.40 and 115,956.80 is: 173,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,281.60 : 229,922.40 = 115,956.80 : x
  2. Step 2: Convert to fraction form
    153,281.60/229,922.40 = 115,956.80/x
  3. Step 3: Cross multiply
    153,281.60x = 229,922.40 × 115,956.80
  4. Step 4: Simplify right side
    153,281.60x = 26,661,065,752.32
  5. Step 5: Solve for x
    x = 26,661,065,752.32/153,281.60
  6. Step 6: Final answer
    x = 173,935.20

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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.