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Finding the Fourth Proportional to 218,612.93, 301,681.79 and 119,158.39

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Solution

The fourth proportional to 218,612.93, 301,681.79 and 119,158.39 is: 164,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,612.93 : 301,681.79 = 119,158.39 : x
  2. Step 2: Convert to fraction form
    218,612.93/301,681.79 = 119,158.39/x
  3. Step 3: Cross multiply
    218,612.93x = 301,681.79 × 119,158.39
  4. Step 4: Simplify right side
    218,612.93x = 35,947,916,388.72
  5. Step 5: Solve for x
    x = 35,947,916,388.72/218,612.93
  6. Step 6: Final answer
    x = 164,436.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.