Home / 272,865.24-408,542.13-139,458.24

Finding the Fourth Proportional to 272,865.24, 408,542.13 and 139,458.24

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Solution

The fourth proportional to 272,865.24, 408,542.13 and 139,458.24 is: 208,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,865.24 : 408,542.13 = 139,458.24 : x
  2. Step 2: Convert to fraction form
    272,865.24/408,542.13 = 139,458.24/x
  3. Step 3: Cross multiply
    272,865.24x = 408,542.13 × 139,458.24
  4. Step 4: Simplify right side
    272,865.24x = 56,974,566,415.65
  5. Step 5: Solve for x
    x = 56,974,566,415.65/272,865.24
  6. Step 6: Final answer
    x = 208,801.12

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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.