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Finding the Fourth Proportional to 330,108.16, 495,197.88 and 105,389.86

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Solution

The fourth proportional to 330,108.16, 495,197.88 and 105,389.86 is: 158,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,108.16 : 495,197.88 = 105,389.86 : x
  2. Step 2: Convert to fraction form
    330,108.16/495,197.88 = 105,389.86/x
  3. Step 3: Cross multiply
    330,108.16x = 495,197.88 × 105,389.86
  4. Step 4: Simplify right side
    330,108.16x = 52,188,835,245.50
  5. Step 5: Solve for x
    x = 52,188,835,245.50/330,108.16
  6. Step 6: Final answer
    x = 158,096.17

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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.