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Finding the Fourth Proportional to 245,804.38, 368,849.67 and 103,640.74

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Solution

The fourth proportional to 245,804.38, 368,849.67 and 103,640.74 is: 155,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,804.38 : 368,849.67 = 103,640.74 : x
  2. Step 2: Convert to fraction form
    245,804.38/368,849.67 = 103,640.74/x
  3. Step 3: Cross multiply
    245,804.38x = 368,849.67 × 103,640.74
  4. Step 4: Simplify right side
    245,804.38x = 38,227,852,747.56
  5. Step 5: Solve for x
    x = 38,227,852,747.56/245,804.38
  6. Step 6: Final answer
    x = 155,521.45

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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.