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Finding the Fourth Proportional to 303,396.51, 455,094.81 and 284,697.66

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Solution

The fourth proportional to 303,396.51, 455,094.81 and 284,697.66 is: 427,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,396.51 : 455,094.81 = 284,697.66 : x
  2. Step 2: Convert to fraction form
    303,396.51/455,094.81 = 284,697.66/x
  3. Step 3: Cross multiply
    303,396.51x = 455,094.81 × 284,697.66
  4. Step 4: Simplify right side
    303,396.51x = 129,564,427,485.15
  5. Step 5: Solve for x
    x = 129,564,427,485.15/303,396.51
  6. Step 6: Final answer
    x = 427,046.53

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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.