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Finding the Fourth Proportional to 330,418.81, 495,792.87 and 130,883.01

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Solution

The fourth proportional to 330,418.81, 495,792.87 and 130,883.01 is: 196,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,418.81 : 495,792.87 = 130,883.01 : x
  2. Step 2: Convert to fraction form
    330,418.81/495,792.87 = 130,883.01/x
  3. Step 3: Cross multiply
    330,418.81x = 495,792.87 × 130,883.01
  4. Step 4: Simplify right side
    330,418.81x = 64,890,860,812.10
  5. Step 5: Solve for x
    x = 64,890,860,812.10/330,418.81
  6. Step 6: Final answer
    x = 196,389.73

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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.