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Finding the Fourth Proportional to 154,063, 231,107.64 and 43,255

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Solution

The fourth proportional to 154,063, 231,107.64 and 43,255 is: 64,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,063 : 231,107.64 = 43,255 : x
  2. Step 2: Convert to fraction form
    154,063/231,107.64 = 43,255/x
  3. Step 3: Cross multiply
    154,063x = 231,107.64 × 43,255
  4. Step 4: Simplify right side
    154,063x = 9,996,560,968.20
  5. Step 5: Solve for x
    x = 9,996,560,968.20/154,063
  6. Step 6: Final answer
    x = 64,886.19

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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.