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Finding the Fourth Proportional to 330,435.96, 495,654.30 and 90,551.91

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Solution

The fourth proportional to 330,435.96, 495,654.30 and 90,551.91 is: 135,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,435.96 : 495,654.30 = 90,551.91 : x
  2. Step 2: Convert to fraction form
    330,435.96/495,654.30 = 90,551.91/x
  3. Step 3: Cross multiply
    330,435.96x = 495,654.30 × 90,551.91
  4. Step 4: Simplify right side
    330,435.96x = 44,882,443,564.71
  5. Step 5: Solve for x
    x = 44,882,443,564.71/330,435.96
  6. Step 6: Final answer
    x = 135,827.96

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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.