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Finding the Fourth Proportional to 154,047, 231,070.50 and 55,551

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Solution

The fourth proportional to 154,047, 231,070.50 and 55,551 is: 83,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047 : 231,070.50 = 55,551 : x
  2. Step 2: Convert to fraction form
    154,047/231,070.50 = 55,551/x
  3. Step 3: Cross multiply
    154,047x = 231,070.50 × 55,551
  4. Step 4: Simplify right side
    154,047x = 12,836,197,345.50
  5. Step 5: Solve for x
    x = 12,836,197,345.50/154,047
  6. Step 6: Final answer
    x = 83,326.50

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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.