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Finding the Fourth Proportional to 399,360.64, 598,840.64 and 133,027.52

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Solution

The fourth proportional to 399,360.64, 598,840.64 and 133,027.52 is: 199,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,360.64 : 598,840.64 = 133,027.52 : x
  2. Step 2: Convert to fraction form
    399,360.64/598,840.64 = 133,027.52/x
  3. Step 3: Cross multiply
    399,360.64x = 598,840.64 × 133,027.52
  4. Step 4: Simplify right side
    399,360.64x = 79,662,285,214.41
  5. Step 5: Solve for x
    x = 79,662,285,214.41/399,360.64
  6. Step 6: Final answer
    x = 199,474.55

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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.