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Finding the Fourth Proportional to 503.15, 752.18 and 450.98

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Solution

The fourth proportional to 503.15, 752.18 and 450.98 is: 674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.15 : 752.18 = 450.98 : x
  2. Step 2: Convert to fraction form
    503.15/752.18 = 450.98/x
  3. Step 3: Cross multiply
    503.15x = 752.18 × 450.98
  4. Step 4: Simplify right side
    503.15x = 339,212.12
  5. Step 5: Solve for x
    x = 339,212.12/503.15
  6. Step 6: Final answer
    x = 674.18

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1.5x scale

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.