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Finding the Fourth Proportional to 437.26, 651.68 and 436.58

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Solution

The fourth proportional to 437.26, 651.68 and 436.58 is: 650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.26 : 651.68 = 436.58 : x
  2. Step 2: Convert to fraction form
    437.26/651.68 = 436.58/x
  3. Step 3: Cross multiply
    437.26x = 651.68 × 436.58
  4. Step 4: Simplify right side
    437.26x = 284,510.45
  5. Step 5: Solve for x
    x = 284,510.45/437.26
  6. Step 6: Final answer
    x = 650.67

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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.