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Finding the Fourth Proportional to 251,413.28, 346,956.26 and 136,698.48

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Solution

The fourth proportional to 251,413.28, 346,956.26 and 136,698.48 is: 188,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,413.28 : 346,956.26 = 136,698.48 : x
  2. Step 2: Convert to fraction form
    251,413.28/346,956.26 = 136,698.48/x
  3. Step 3: Cross multiply
    251,413.28x = 346,956.26 × 136,698.48
  4. Step 4: Simplify right side
    251,413.28x = 47,428,393,368.48
  5. Step 5: Solve for x
    x = 47,428,393,368.48/251,413.28
  6. Step 6: Final answer
    x = 188,647.13

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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.