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Finding the Fourth Proportional to 503.73, 751.34 and 488.35

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Solution

The fourth proportional to 503.73, 751.34 and 488.35 is: 728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.73 : 751.34 = 488.35 : x
  2. Step 2: Convert to fraction form
    503.73/751.34 = 488.35/x
  3. Step 3: Cross multiply
    503.73x = 751.34 × 488.35
  4. Step 4: Simplify right side
    503.73x = 366,916.89
  5. Step 5: Solve for x
    x = 366,916.89/503.73
  6. Step 6: Final answer
    x = 728.40

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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.