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Finding the Fourth Proportional to 330,028.40, 495,042.60 and 310,674.80

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Solution

The fourth proportional to 330,028.40, 495,042.60 and 310,674.80 is: 466,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,028.40 : 495,042.60 = 310,674.80 : x
  2. Step 2: Convert to fraction form
    330,028.40/495,042.60 = 310,674.80/x
  3. Step 3: Cross multiply
    330,028.40x = 495,042.60 × 310,674.80
  4. Step 4: Simplify right side
    330,028.40x = 153,797,260,746.48
  5. Step 5: Solve for x
    x = 153,797,260,746.48/330,028.40
  6. Step 6: Final answer
    x = 466,012.20

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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.