Home / 381,279.39-526,166.04-211,513.51

Finding the Fourth Proportional to 381,279.39, 526,166.04 and 211,513.51

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Solution

The fourth proportional to 381,279.39, 526,166.04 and 211,513.51 is: 291,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,279.39 : 526,166.04 = 211,513.51 : x
  2. Step 2: Convert to fraction form
    381,279.39/526,166.04 = 211,513.51/x
  3. Step 3: Cross multiply
    381,279.39x = 526,166.04 × 211,513.51
  4. Step 4: Simplify right side
    381,279.39x = 111,291,225,963.20
  5. Step 5: Solve for x
    x = 111,291,225,963.20/381,279.39
  6. Step 6: Final answer
    x = 291,888.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.