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Finding the Fourth Proportional to 329,686.20, 495,566.10 and 323,465.40

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Solution

The fourth proportional to 329,686.20, 495,566.10 and 323,465.40 is: 486,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,686.20 : 495,566.10 = 323,465.40 : x
  2. Step 2: Convert to fraction form
    329,686.20/495,566.10 = 323,465.40/x
  3. Step 3: Cross multiply
    329,686.20x = 495,566.10 × 323,465.40
  4. Step 4: Simplify right side
    329,686.20x = 160,298,486,762.94
  5. Step 5: Solve for x
    x = 160,298,486,762.94/329,686.20
  6. Step 6: Final answer
    x = 486,215.34

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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.