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Finding the Fourth Proportional to 372,372, 513,834.48 and 211,175.52

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Solution

The fourth proportional to 372,372, 513,834.48 and 211,175.52 is: 291,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,372 : 513,834.48 = 211,175.52 : x
  2. Step 2: Convert to fraction form
    372,372/513,834.48 = 211,175.52/x
  3. Step 3: Cross multiply
    372,372x = 513,834.48 × 211,175.52
  4. Step 4: Simplify right side
    372,372x = 108,509,263,507.93
  5. Step 5: Solve for x
    x = 108,509,263,507.93/372,372
  6. Step 6: Final answer
    x = 291,400.17

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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.