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Finding the Fourth Proportional to 379,840.20, 569,760.30 and 246,870.60

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Solution

The fourth proportional to 379,840.20, 569,760.30 and 246,870.60 is: 370,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,840.20 : 569,760.30 = 246,870.60 : x
  2. Step 2: Convert to fraction form
    379,840.20/569,760.30 = 246,870.60/x
  3. Step 3: Cross multiply
    379,840.20x = 569,760.30 × 246,870.60
  4. Step 4: Simplify right side
    379,840.20x = 140,657,067,117.18
  5. Step 5: Solve for x
    x = 140,657,067,117.18/379,840.20
  6. Step 6: Final answer
    x = 370,305.90

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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.