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Finding the Fourth Proportional to 408,235.01, 612,361.00 and 148,563.72

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Solution

The fourth proportional to 408,235.01, 612,361.00 and 148,563.72 is: 222,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,235.01 : 612,361.00 = 148,563.72 : x
  2. Step 2: Convert to fraction form
    408,235.01/612,361.00 = 148,563.72/x
  3. Step 3: Cross multiply
    408,235.01x = 612,361.00 × 148,563.72
  4. Step 4: Simplify right side
    408,235.01x = 90,974,627,492.95
  5. Step 5: Solve for x
    x = 90,974,627,492.95/408,235.01
  6. Step 6: Final answer
    x = 222,848.67

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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.