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Finding the Fourth Proportional to 254,884.91, 351,735.45 and 138,595.87

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Solution

The fourth proportional to 254,884.91, 351,735.45 and 138,595.87 is: 191,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,884.91 : 351,735.45 = 138,595.87 : x
  2. Step 2: Convert to fraction form
    254,884.91/351,735.45 = 138,595.87/x
  3. Step 3: Cross multiply
    254,884.91x = 351,735.45 × 138,595.87
  4. Step 4: Simplify right side
    254,884.91x = 48,749,080,702.59
  5. Step 5: Solve for x
    x = 48,749,080,702.59/254,884.91
  6. Step 6: Final answer
    x = 191,259.19

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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.