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Finding the Fourth Proportional to 245,530.31, 368,294.42 and 68,036.81

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Solution

The fourth proportional to 245,530.31, 368,294.42 and 68,036.81 is: 102,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,530.31 : 368,294.42 = 68,036.81 : x
  2. Step 2: Convert to fraction form
    245,530.31/368,294.42 = 68,036.81/x
  3. Step 3: Cross multiply
    245,530.31x = 368,294.42 × 68,036.81
  4. Step 4: Simplify right side
    245,530.31x = 25,057,575,295.94
  5. Step 5: Solve for x
    x = 25,057,575,295.94/245,530.31
  6. Step 6: Final answer
    x = 102,054.92

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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.