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Finding the Fourth Proportional to 356,401.63, 491,835.15 and 195,259.87

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Solution

The fourth proportional to 356,401.63, 491,835.15 and 195,259.87 is: 269,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,401.63 : 491,835.15 = 195,259.87 : x
  2. Step 2: Convert to fraction form
    356,401.63/491,835.15 = 195,259.87/x
  3. Step 3: Cross multiply
    356,401.63x = 491,835.15 × 195,259.87
  4. Step 4: Simplify right side
    356,401.63x = 96,035,664,014.96
  5. Step 5: Solve for x
    x = 96,035,664,014.96/356,401.63
  6. Step 6: Final answer
    x = 269,459.11

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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.