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Finding the Fourth Proportional to 240,378.60, 360,600.30 and 82,655.40

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Solution

The fourth proportional to 240,378.60, 360,600.30 and 82,655.40 is: 123,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,378.60 : 360,600.30 = 82,655.40 : x
  2. Step 2: Convert to fraction form
    240,378.60/360,600.30 = 82,655.40/x
  3. Step 3: Cross multiply
    240,378.60x = 360,600.30 × 82,655.40
  4. Step 4: Simplify right side
    240,378.60x = 29,805,562,036.62
  5. Step 5: Solve for x
    x = 29,805,562,036.62/240,378.60
  6. Step 6: Final answer
    x = 123,994.24

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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.