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Finding the Fourth Proportional to 248,382.48, 342,788.04 and 139,484.40

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Solution

The fourth proportional to 248,382.48, 342,788.04 and 139,484.40 is: 192,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,382.48 : 342,788.04 = 139,484.40 : x
  2. Step 2: Convert to fraction form
    248,382.48/342,788.04 = 139,484.40/x
  3. Step 3: Cross multiply
    248,382.48x = 342,788.04 × 139,484.40
  4. Step 4: Simplify right side
    248,382.48x = 47,813,584,086.58
  5. Step 5: Solve for x
    x = 47,813,584,086.58/248,382.48
  6. Step 6: Final answer
    x = 192,499.83

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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.