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Finding the Fourth Proportional to 329,659.20, 495,525.60 and 323,438.40

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Solution

The fourth proportional to 329,659.20, 495,525.60 and 323,438.40 is: 486,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,659.20 : 495,525.60 = 323,438.40 : x
  2. Step 2: Convert to fraction form
    329,659.20/495,525.60 = 323,438.40/x
  3. Step 3: Cross multiply
    329,659.20x = 495,525.60 × 323,438.40
  4. Step 4: Simplify right side
    329,659.20x = 160,272,007,223.04
  5. Step 5: Solve for x
    x = 160,272,007,223.04/329,659.20
  6. Step 6: Final answer
    x = 486,174.84

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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.