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Finding the Fourth Proportional to 330,335.49, 495,576.93 and 105,709.42

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Solution

The fourth proportional to 330,335.49, 495,576.93 and 105,709.42 is: 158,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,335.49 : 495,576.93 = 105,709.42 : x
  2. Step 2: Convert to fraction form
    330,335.49/495,576.93 = 105,709.42/x
  3. Step 3: Cross multiply
    330,335.49x = 495,576.93 × 105,709.42
  4. Step 4: Simplify right side
    330,335.49x = 52,387,150,851.56
  5. Step 5: Solve for x
    x = 52,387,150,851.56/330,335.49
  6. Step 6: Final answer
    x = 158,587.71

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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.