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Finding the Fourth Proportional to 503.19, 751.40 and 441.03

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Solution

The fourth proportional to 503.19, 751.40 and 441.03 is: 658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.19 : 751.40 = 441.03 : x
  2. Step 2: Convert to fraction form
    503.19/751.40 = 441.03/x
  3. Step 3: Cross multiply
    503.19x = 751.40 × 441.03
  4. Step 4: Simplify right side
    503.19x = 331,387.74
  5. Step 5: Solve for x
    x = 331,387.74/503.19
  6. Step 6: Final answer
    x = 658.57

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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.