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Finding the Fourth Proportional to 260,716.60, 359,603 and 239,275.44

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Solution

The fourth proportional to 260,716.60, 359,603 and 239,275.44 is: 330,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,716.60 : 359,603 = 239,275.44 : x
  2. Step 2: Convert to fraction form
    260,716.60/359,603 = 239,275.44/x
  3. Step 3: Cross multiply
    260,716.60x = 359,603 × 239,275.44
  4. Step 4: Simplify right side
    260,716.60x = 86,044,166,050.32
  5. Step 5: Solve for x
    x = 86,044,166,050.32/260,716.60
  6. Step 6: Final answer
    x = 330,029.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.