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Finding the Fourth Proportional to 303,396.38, 417,702.93 and 238,751.66

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Solution

The fourth proportional to 303,396.38, 417,702.93 and 238,751.66 is: 328,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,396.38 : 417,702.93 = 238,751.66 : x
  2. Step 2: Convert to fraction form
    303,396.38/417,702.93 = 238,751.66/x
  3. Step 3: Cross multiply
    303,396.38x = 417,702.93 × 238,751.66
  4. Step 4: Simplify right side
    303,396.38x = 99,727,267,924.36
  5. Step 5: Solve for x
    x = 99,727,267,924.36/303,396.38
  6. Step 6: Final answer
    x = 328,702.89

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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.