Home / 314,785.95-472,005.78-215,058.75

Finding the Fourth Proportional to 314,785.95, 472,005.78 and 215,058.75

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Solution

The fourth proportional to 314,785.95, 472,005.78 and 215,058.75 is: 322,469.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,785.95 : 472,005.78 = 215,058.75 : x
  2. Step 2: Convert to fraction form
    314,785.95/472,005.78 = 215,058.75/x
  3. Step 3: Cross multiply
    314,785.95x = 472,005.78 × 215,058.75
  4. Step 4: Simplify right side
    314,785.95x = 101,508,973,039.58
  5. Step 5: Solve for x
    x = 101,508,973,039.58/314,785.95
  6. Step 6: Final answer
    x = 322,469.83

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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.