Home / 260,012.58-390,033.45-73,009.50

Finding the Fourth Proportional to 260,012.58, 390,033.45 and 73,009.50

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Solution

The fourth proportional to 260,012.58, 390,033.45 and 73,009.50 is: 109,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,012.58 : 390,033.45 = 73,009.50 : x
  2. Step 2: Convert to fraction form
    260,012.58/390,033.45 = 73,009.50/x
  3. Step 3: Cross multiply
    260,012.58x = 390,033.45 × 73,009.50
  4. Step 4: Simplify right side
    260,012.58x = 28,476,147,167.78
  5. Step 5: Solve for x
    x = 28,476,147,167.78/260,012.58
  6. Step 6: Final answer
    x = 109,518.34

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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.