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Finding the Fourth Proportional to 248,169.68, 342,535 and 140,802.56

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Solution

The fourth proportional to 248,169.68, 342,535 and 140,802.56 is: 194,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,169.68 : 342,535 = 140,802.56 : x
  2. Step 2: Convert to fraction form
    248,169.68/342,535 = 140,802.56/x
  3. Step 3: Cross multiply
    248,169.68x = 342,535 × 140,802.56
  4. Step 4: Simplify right side
    248,169.68x = 48,229,804,889.60
  5. Step 5: Solve for x
    x = 48,229,804,889.60/248,169.68
  6. Step 6: Final answer
    x = 194,342.05

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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.