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Finding the Fourth Proportional to 450.51, 671.11 and 436.91

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Solution

The fourth proportional to 450.51, 671.11 and 436.91 is: 650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.51 : 671.11 = 436.91 : x
  2. Step 2: Convert to fraction form
    450.51/671.11 = 436.91/x
  3. Step 3: Cross multiply
    450.51x = 671.11 × 436.91
  4. Step 4: Simplify right side
    450.51x = 293,214.67
  5. Step 5: Solve for x
    x = 293,214.67/450.51
  6. Step 6: Final answer
    x = 650.85

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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.