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Finding the Fourth Proportional to 330,999.40, 495,514.95 and 330,999.40

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Solution

The fourth proportional to 330,999.40, 495,514.95 and 330,999.40 is: 495,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,999.40 : 495,514.95 = 330,999.40 : x
  2. Step 2: Convert to fraction form
    330,999.40/495,514.95 = 330,999.40/x
  3. Step 3: Cross multiply
    330,999.40x = 495,514.95 × 330,999.40
  4. Step 4: Simplify right side
    330,999.40x = 164,015,151,141.03
  5. Step 5: Solve for x
    x = 164,015,151,141.03/330,999.40
  6. Step 6: Final answer
    x = 495,514.95

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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.