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Finding the Fourth Proportional to 301,054.50, 451,612.02 and 79,438.50

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Solution

The fourth proportional to 301,054.50, 451,612.02 and 79,438.50 is: 119,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,054.50 : 451,612.02 = 79,438.50 : x
  2. Step 2: Convert to fraction form
    301,054.50/451,612.02 = 79,438.50/x
  3. Step 3: Cross multiply
    301,054.50x = 451,612.02 × 79,438.50
  4. Step 4: Simplify right side
    301,054.50x = 35,875,381,450.77
  5. Step 5: Solve for x
    x = 35,875,381,450.77/301,054.50
  6. Step 6: Final answer
    x = 119,165.74

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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.