Home / 259,184.21-388,747.15-72,210.29

Finding the Fourth Proportional to 259,184.21, 388,747.15 and 72,210.29

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Solution

The fourth proportional to 259,184.21, 388,747.15 and 72,210.29 is: 108,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,184.21 : 388,747.15 = 72,210.29 : x
  2. Step 2: Convert to fraction form
    259,184.21/388,747.15 = 72,210.29/x
  3. Step 3: Cross multiply
    259,184.21x = 388,747.15 × 72,210.29
  4. Step 4: Simplify right side
    259,184.21x = 28,071,542,313.91
  5. Step 5: Solve for x
    x = 28,071,542,313.91/259,184.21
  6. Step 6: Final answer
    x = 108,307.30

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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.