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Finding the Fourth Proportional to 248,488.92, 342,914.76 and 135,311.76

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Solution

The fourth proportional to 248,488.92, 342,914.76 and 135,311.76 is: 186,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,488.92 : 342,914.76 = 135,311.76 : x
  2. Step 2: Convert to fraction form
    248,488.92/342,914.76 = 135,311.76/x
  3. Step 3: Cross multiply
    248,488.92x = 342,914.76 × 135,311.76
  4. Step 4: Simplify right side
    248,488.92x = 46,400,399,705.58
  5. Step 5: Solve for x
    x = 46,400,399,705.58/248,488.92
  6. Step 6: Final answer
    x = 186,730.26

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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.