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Finding the Fourth Proportional to 245,369.87, 368,054.79 and 67,872.26

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Solution

The fourth proportional to 245,369.87, 368,054.79 and 67,872.26 is: 101,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.87 : 368,054.79 = 67,872.26 : x
  2. Step 2: Convert to fraction form
    245,369.87/368,054.79 = 67,872.26/x
  3. Step 3: Cross multiply
    245,369.87x = 368,054.79 × 67,872.26
  4. Step 4: Simplify right side
    245,369.87x = 24,980,711,066.74
  5. Step 5: Solve for x
    x = 24,980,711,066.74/245,369.87
  6. Step 6: Final answer
    x = 101,808.39

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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.