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Finding the Fourth Proportional to 437.90, 652.10 and 436.68

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Solution

The fourth proportional to 437.90, 652.10 and 436.68 is: 650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.90 : 652.10 = 436.68 : x
  2. Step 2: Convert to fraction form
    437.90/652.10 = 436.68/x
  3. Step 3: Cross multiply
    437.90x = 652.10 × 436.68
  4. Step 4: Simplify right side
    437.90x = 284,756.84
  5. Step 5: Solve for x
    x = 284,756.84/437.90
  6. Step 6: Final answer
    x = 650.29

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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.