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Finding the Fourth Proportional to 330,230.40, 495,017.55 and 152,427.30

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Solution

The fourth proportional to 330,230.40, 495,017.55 and 152,427.30 is: 228,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,230.40 : 495,017.55 = 152,427.30 : x
  2. Step 2: Convert to fraction form
    330,230.40/495,017.55 = 152,427.30/x
  3. Step 3: Cross multiply
    330,230.40x = 495,017.55 × 152,427.30
  4. Step 4: Simplify right side
    330,230.40x = 75,454,188,599.12
  5. Step 5: Solve for x
    x = 75,454,188,599.12/330,230.40
  6. Step 6: Final answer
    x = 228,489.53

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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.