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Finding the Fourth Proportional to 330,408.25, 495,107.71 and 245,759.06

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Solution

The fourth proportional to 330,408.25, 495,107.71 and 245,759.06 is: 368,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,408.25 : 495,107.71 = 245,759.06 : x
  2. Step 2: Convert to fraction form
    330,408.25/495,107.71 = 245,759.06/x
  3. Step 3: Cross multiply
    330,408.25x = 495,107.71 × 245,759.06
  4. Step 4: Simplify right side
    330,408.25x = 121,677,206,031.72
  5. Step 5: Solve for x
    x = 121,677,206,031.72/330,408.25
  6. Step 6: Final answer
    x = 368,263.22

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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.