Home / 259,272.04-388,909.82-72,285.16

Finding the Fourth Proportional to 259,272.04, 388,909.82 and 72,285.16

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Solution

The fourth proportional to 259,272.04, 388,909.82 and 72,285.16 is: 108,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,272.04 : 388,909.82 = 72,285.16 : x
  2. Step 2: Convert to fraction form
    259,272.04/388,909.82 = 72,285.16/x
  3. Step 3: Cross multiply
    259,272.04x = 388,909.82 × 72,285.16
  4. Step 4: Simplify right side
    259,272.04x = 28,112,408,564.27
  5. Step 5: Solve for x
    x = 28,112,408,564.27/259,272.04
  6. Step 6: Final answer
    x = 108,428.23

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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.