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Finding the Fourth Proportional to 291,301.92, 401,766.48 and 190,680.48

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Solution

The fourth proportional to 291,301.92, 401,766.48 and 190,680.48 is: 262,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,301.92 : 401,766.48 = 190,680.48 : x
  2. Step 2: Convert to fraction form
    291,301.92/401,766.48 = 190,680.48/x
  3. Step 3: Cross multiply
    291,301.92x = 401,766.48 × 190,680.48
  4. Step 4: Simplify right side
    291,301.92x = 76,609,025,254.31
  5. Step 5: Solve for x
    x = 76,609,025,254.31/291,301.92
  6. Step 6: Final answer
    x = 262,988.40

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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.