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Finding the Fourth Proportional to 301,019.35, 451,528.12 and 76,379.35

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Solution

The fourth proportional to 301,019.35, 451,528.12 and 76,379.35 is: 114,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,019.35 : 451,528.12 = 76,379.35 : x
  2. Step 2: Convert to fraction form
    301,019.35/451,528.12 = 76,379.35/x
  3. Step 3: Cross multiply
    301,019.35x = 451,528.12 × 76,379.35
  4. Step 4: Simplify right side
    301,019.35x = 34,487,424,312.32
  5. Step 5: Solve for x
    x = 34,487,424,312.32/301,019.35
  6. Step 6: Final answer
    x = 114,568.80

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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.