Home / 331,502.20-497,447.70-121,161.40

Finding the Fourth Proportional to 331,502.20, 497,447.70 and 121,161.40

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Solution

The fourth proportional to 331,502.20, 497,447.70 and 121,161.40 is: 181,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,502.20 : 497,447.70 = 121,161.40 : x
  2. Step 2: Convert to fraction form
    331,502.20/497,447.70 = 121,161.40/x
  3. Step 3: Cross multiply
    331,502.20x = 497,447.70 × 121,161.40
  4. Step 4: Simplify right side
    331,502.20x = 60,271,459,758.78
  5. Step 5: Solve for x
    x = 60,271,459,758.78/331,502.20
  6. Step 6: Final answer
    x = 181,813.15

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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.