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Finding the Fourth Proportional to 303,400.64, 455,691.54 and 247,282.22

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Solution

The fourth proportional to 303,400.64, 455,691.54 and 247,282.22 is: 371,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,400.64 : 455,691.54 = 247,282.22 : x
  2. Step 2: Convert to fraction form
    303,400.64/455,691.54 = 247,282.22/x
  3. Step 3: Cross multiply
    303,400.64x = 455,691.54 × 247,282.22
  4. Step 4: Simplify right side
    303,400.64x = 112,684,415,646.42
  5. Step 5: Solve for x
    x = 112,684,415,646.42/303,400.64
  6. Step 6: Final answer
    x = 371,404.67

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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.