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Finding the Fourth Proportional to 255,988.91, 353,264.32 and 141,267.56

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Solution

The fourth proportional to 255,988.91, 353,264.32 and 141,267.56 is: 194,949.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,988.91 : 353,264.32 = 141,267.56 : x
  2. Step 2: Convert to fraction form
    255,988.91/353,264.32 = 141,267.56/x
  3. Step 3: Cross multiply
    255,988.91x = 353,264.32 × 141,267.56
  4. Step 4: Simplify right side
    255,988.91x = 49,904,786,683.54
  5. Step 5: Solve for x
    x = 49,904,786,683.54/255,988.91
  6. Step 6: Final answer
    x = 194,949.02

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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.