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Finding the Fourth Proportional to 957.83, 1,436.67 and 264.47

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Solution

The fourth proportional to 957.83, 1,436.67 and 264.47 is: 396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.83 : 1,436.67 = 264.47 : x
  2. Step 2: Convert to fraction form
    957.83/1,436.67 = 264.47/x
  3. Step 3: Cross multiply
    957.83x = 1,436.67 × 264.47
  4. Step 4: Simplify right side
    957.83x = 379,948.93
  5. Step 5: Solve for x
    x = 379,948.93/957.83
  6. Step 6: Final answer
    x = 396.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.