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Finding the Fourth Proportional to 408,353.00, 612,705.06 and 141,968.30

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Solution

The fourth proportional to 408,353.00, 612,705.06 and 141,968.30 is: 213,013.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,353.00 : 612,705.06 = 141,968.30 : x
  2. Step 2: Convert to fraction form
    408,353.00/612,705.06 = 141,968.30/x
  3. Step 3: Cross multiply
    408,353.00x = 612,705.06 × 141,968.30
  4. Step 4: Simplify right side
    408,353.00x = 86,984,692,706.07
  5. Step 5: Solve for x
    x = 86,984,692,706.07/408,353.00
  6. Step 6: Final answer
    x = 213,013.48

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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.