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Finding the Fourth Proportional to 1,516.98, 2,275.50 and 476.94

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Solution

The fourth proportional to 1,516.98, 2,275.50 and 476.94 is: 715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.98 : 2,275.50 = 476.94 : x
  2. Step 2: Convert to fraction form
    1,516.98/2,275.50 = 476.94/x
  3. Step 3: Cross multiply
    1,516.98x = 2,275.50 × 476.94
  4. Step 4: Simplify right side
    1,516.98x = 1,085,276.97
  5. Step 5: Solve for x
    x = 1,085,276.97/1,516.98
  6. Step 6: Final answer
    x = 715.42

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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.