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Finding the Fourth Proportional to 154,143, 231,214.56 and 43,335

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Solution

The fourth proportional to 154,143, 231,214.56 and 43,335 is: 65,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,143 : 231,214.56 = 43,335 : x
  2. Step 2: Convert to fraction form
    154,143/231,214.56 = 43,335/x
  3. Step 3: Cross multiply
    154,143x = 231,214.56 × 43,335
  4. Step 4: Simplify right side
    154,143x = 10,019,682,957.60
  5. Step 5: Solve for x
    x = 10,019,682,957.60/154,143
  6. Step 6: Final answer
    x = 65,002.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.