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Finding the Fourth Proportional to 499.84, 749.10 and 369.10

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Solution

The fourth proportional to 499.84, 749.10 and 369.10 is: 553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.84 : 749.10 = 369.10 : x
  2. Step 2: Convert to fraction form
    499.84/749.10 = 369.10/x
  3. Step 3: Cross multiply
    499.84x = 749.10 × 369.10
  4. Step 4: Simplify right side
    499.84x = 276,492.81
  5. Step 5: Solve for x
    x = 276,492.81/499.84
  6. Step 6: Final answer
    x = 553.16

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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.