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Finding the Fourth Proportional to 491,897.81, 737,846.72 and 136,921.08

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Solution

The fourth proportional to 491,897.81, 737,846.72 and 136,921.08 is: 205,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,897.81 : 737,846.72 = 136,921.08 : x
  2. Step 2: Convert to fraction form
    491,897.81/737,846.72 = 136,921.08/x
  3. Step 3: Cross multiply
    491,897.81x = 737,846.72 × 136,921.08
  4. Step 4: Simplify right side
    491,897.81x = 101,026,772,372.63
  5. Step 5: Solve for x
    x = 101,026,772,372.63/491,897.81
  6. Step 6: Final answer
    x = 205,381.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.