Home / 272,213.19-408,402.68-139,186.89

Finding the Fourth Proportional to 272,213.19, 408,402.68 and 139,186.89

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Solution

The fourth proportional to 272,213.19, 408,402.68 and 139,186.89 is: 208,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,213.19 : 408,402.68 = 139,186.89 : x
  2. Step 2: Convert to fraction form
    272,213.19/408,402.68 = 139,186.89/x
  3. Step 3: Cross multiply
    272,213.19x = 408,402.68 × 139,186.89
  4. Step 4: Simplify right side
    272,213.19x = 56,844,298,200.93
  5. Step 5: Solve for x
    x = 56,844,298,200.93/272,213.19
  6. Step 6: Final answer
    x = 208,822.72

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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.