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Finding the Fourth Proportional to 381,570.70, 526,569.60 and 238,413.76

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Solution

The fourth proportional to 381,570.70, 526,569.60 and 238,413.76 is: 329,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,570.70 : 526,569.60 = 238,413.76 : x
  2. Step 2: Convert to fraction form
    381,570.70/526,569.60 = 238,413.76/x
  3. Step 3: Cross multiply
    381,570.70x = 526,569.60 × 238,413.76
  4. Step 4: Simplify right side
    381,570.70x = 125,541,438,237.70
  5. Step 5: Solve for x
    x = 125,541,438,237.70/381,570.70
  6. Step 6: Final answer
    x = 329,012.26

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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.