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Finding the Fourth Proportional to 240,387.36, 360,664.67 and 90,670.60

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Solution

The fourth proportional to 240,387.36, 360,664.67 and 90,670.60 is: 136,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,387.36 : 360,664.67 = 90,670.60 : x
  2. Step 2: Convert to fraction form
    240,387.36/360,664.67 = 90,670.60/x
  3. Step 3: Cross multiply
    240,387.36x = 360,664.67 × 90,670.60
  4. Step 4: Simplify right side
    240,387.36x = 32,701,682,027.70
  5. Step 5: Solve for x
    x = 32,701,682,027.70/240,387.36
  6. Step 6: Final answer
    x = 136,037.44

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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.