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Finding the Fourth Proportional to 248,111.67, 342,383.67 and 140,688.93

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Solution

The fourth proportional to 248,111.67, 342,383.67 and 140,688.93 is: 194,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,111.67 : 342,383.67 = 140,688.93 : x
  2. Step 2: Convert to fraction form
    248,111.67/342,383.67 = 140,688.93/x
  3. Step 3: Cross multiply
    248,111.67x = 342,383.67 × 140,688.93
  4. Step 4: Simplify right side
    248,111.67x = 48,169,592,181.77
  5. Step 5: Solve for x
    x = 48,169,592,181.77/248,111.67
  6. Step 6: Final answer
    x = 194,144.81

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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.