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Finding the Fourth Proportional to 437.02, 650.94 and 436.18

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Solution

The fourth proportional to 437.02, 650.94 and 436.18 is: 649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.02 : 650.94 = 436.18 : x
  2. Step 2: Convert to fraction form
    437.02/650.94 = 436.18/x
  3. Step 3: Cross multiply
    437.02x = 650.94 × 436.18
  4. Step 4: Simplify right side
    437.02x = 283,927.01
  5. Step 5: Solve for x
    x = 283,927.01/437.02
  6. Step 6: Final answer
    x = 649.69

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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.