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Finding the Fourth Proportional to 330,228.90, 495,015.30 and 152,425.80

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Solution

The fourth proportional to 330,228.90, 495,015.30 and 152,425.80 is: 228,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,228.90 : 495,015.30 = 152,425.80 : x
  2. Step 2: Convert to fraction form
    330,228.90/495,015.30 = 152,425.80/x
  3. Step 3: Cross multiply
    330,228.90x = 495,015.30 × 152,425.80
  4. Step 4: Simplify right side
    330,228.90x = 75,453,103,114.74
  5. Step 5: Solve for x
    x = 75,453,103,114.74/330,228.90
  6. Step 6: Final answer
    x = 228,487.28

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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.