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Finding the Fourth Proportional to 320,294.39, 480,435.50 and 95,655.47

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Solution

The fourth proportional to 320,294.39, 480,435.50 and 95,655.47 is: 143,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,294.39 : 480,435.50 = 95,655.47 : x
  2. Step 2: Convert to fraction form
    320,294.39/480,435.50 = 95,655.47/x
  3. Step 3: Cross multiply
    320,294.39x = 480,435.50 × 95,655.47
  4. Step 4: Simplify right side
    320,294.39x = 45,956,281,394.15
  5. Step 5: Solve for x
    x = 45,956,281,394.15/320,294.39
  6. Step 6: Final answer
    x = 143,481.38

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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.