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Finding the Fourth Proportional to 330,344.66, 495,549.70 and 105,648.64

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Solution

The fourth proportional to 330,344.66, 495,549.70 and 105,648.64 is: 158,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,344.66 : 495,549.70 = 105,648.64 : x
  2. Step 2: Convert to fraction form
    330,344.66/495,549.70 = 105,648.64/x
  3. Step 3: Cross multiply
    330,344.66x = 495,549.70 × 105,648.64
  4. Step 4: Simplify right side
    330,344.66x = 52,354,150,354.41
  5. Step 5: Solve for x
    x = 52,354,150,354.41/330,344.66
  6. Step 6: Final answer
    x = 158,483.42

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1.5x scale

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.