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Finding the Fourth Proportional to 436.36, 651.81 and 371.56

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Solution

The fourth proportional to 436.36, 651.81 and 371.56 is: 555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.36 : 651.81 = 371.56 : x
  2. Step 2: Convert to fraction form
    436.36/651.81 = 371.56/x
  3. Step 3: Cross multiply
    436.36x = 651.81 × 371.56
  4. Step 4: Simplify right side
    436.36x = 242,186.52
  5. Step 5: Solve for x
    x = 242,186.52/436.36
  6. Step 6: Final answer
    x = 555.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.