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Finding the Fourth Proportional to 245,888.82, 339,337.01 and 136,993.07

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Solution

The fourth proportional to 245,888.82, 339,337.01 and 136,993.07 is: 189,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,888.82 : 339,337.01 = 136,993.07 : x
  2. Step 2: Convert to fraction form
    245,888.82/339,337.01 = 136,993.07/x
  3. Step 3: Cross multiply
    245,888.82x = 339,337.01 × 136,993.07
  4. Step 4: Simplify right side
    245,888.82x = 46,486,816,382.87
  5. Step 5: Solve for x
    x = 46,486,816,382.87/245,888.82
  6. Step 6: Final answer
    x = 189,056.24

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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.