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Finding the Fourth Proportional to 226,731.60, 340,097.40 and 215,326.80

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Solution

The fourth proportional to 226,731.60, 340,097.40 and 215,326.80 is: 322,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,731.60 : 340,097.40 = 215,326.80 : x
  2. Step 2: Convert to fraction form
    226,731.60/340,097.40 = 215,326.80/x
  3. Step 3: Cross multiply
    226,731.60x = 340,097.40 × 215,326.80
  4. Step 4: Simplify right side
    226,731.60x = 73,232,084,830.32
  5. Step 5: Solve for x
    x = 73,232,084,830.32/226,731.60
  6. Step 6: Final answer
    x = 322,990.20

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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.