Home / 247,047.51-339,616.61-212,465.78

Finding the Fourth Proportional to 247,047.51, 339,616.61 and 212,465.78

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Solution

The fourth proportional to 247,047.51, 339,616.61 and 212,465.78 is: 292,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,047.51 : 339,616.61 = 212,465.78 : x
  2. Step 2: Convert to fraction form
    247,047.51/339,616.61 = 212,465.78/x
  3. Step 3: Cross multiply
    247,047.51x = 339,616.61 × 212,465.78
  4. Step 4: Simplify right side
    247,047.51x = 72,156,906,777.69
  5. Step 5: Solve for x
    x = 72,156,906,777.69/247,047.51
  6. Step 6: Final answer
    x = 292,077.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.