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Finding the Fourth Proportional to 503.02, 754.12 and 307.81

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Solution

The fourth proportional to 503.02, 754.12 and 307.81 is: 461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.02 : 754.12 = 307.81 : x
  2. Step 2: Convert to fraction form
    503.02/754.12 = 307.81/x
  3. Step 3: Cross multiply
    503.02x = 754.12 × 307.81
  4. Step 4: Simplify right side
    503.02x = 232,125.68
  5. Step 5: Solve for x
    x = 232,125.68/503.02
  6. Step 6: Final answer
    x = 461.46

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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.