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Finding the Fourth Proportional to 666,548.40, 999,822.60 and 167,912.40

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Solution

The fourth proportional to 666,548.40, 999,822.60 and 167,912.40 is: 251,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,548.40 : 999,822.60 = 167,912.40 : x
  2. Step 2: Convert to fraction form
    666,548.40/999,822.60 = 167,912.40/x
  3. Step 3: Cross multiply
    666,548.40x = 999,822.60 × 167,912.40
  4. Step 4: Simplify right side
    666,548.40x = 167,882,612,340.24
  5. Step 5: Solve for x
    x = 167,882,612,340.24/666,548.40
  6. Step 6: Final answer
    x = 251,868.60

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Similar ratio
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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.