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Finding the Fourth Proportional to 331,673.70, 497,401.20 and 121,284.30

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Solution

The fourth proportional to 331,673.70, 497,401.20 and 121,284.30 is: 181,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,673.70 : 497,401.20 = 121,284.30 : x
  2. Step 2: Convert to fraction form
    331,673.70/497,401.20 = 121,284.30/x
  3. Step 3: Cross multiply
    331,673.70x = 497,401.20 × 121,284.30
  4. Step 4: Simplify right side
    331,673.70x = 60,326,956,361.16
  5. Step 5: Solve for x
    x = 60,326,956,361.16/331,673.70
  6. Step 6: Final answer
    x = 181,886.46

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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.