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Finding the Fourth Proportional to 331,341.70, 497,401.35 and 329,008.90

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Solution

The fourth proportional to 331,341.70, 497,401.35 and 329,008.90 is: 493,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,341.70 : 497,401.35 = 329,008.90 : x
  2. Step 2: Convert to fraction form
    331,341.70/497,401.35 = 329,008.90/x
  3. Step 3: Cross multiply
    331,341.70x = 497,401.35 × 329,008.90
  4. Step 4: Simplify right side
    331,341.70x = 163,649,471,022.02
  5. Step 5: Solve for x
    x = 163,649,471,022.02/331,341.70
  6. Step 6: Final answer
    x = 493,899.41

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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.