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Finding the Fourth Proportional to 342,133.08, 472,039.96 and 238,764.54

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Solution

The fourth proportional to 342,133.08, 472,039.96 and 238,764.54 is: 329,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,133.08 : 472,039.96 = 238,764.54 : x
  2. Step 2: Convert to fraction form
    342,133.08/472,039.96 = 238,764.54/x
  3. Step 3: Cross multiply
    342,133.08x = 472,039.96 × 238,764.54
  4. Step 4: Simplify right side
    342,133.08x = 112,706,403,911.02
  5. Step 5: Solve for x
    x = 112,706,403,911.02/342,133.08
  6. Step 6: Final answer
    x = 329,422.70

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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.