Home / 331,727.20-497,785.20-121,386.40

Finding the Fourth Proportional to 331,727.20, 497,785.20 and 121,386.40

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Solution

The fourth proportional to 331,727.20, 497,785.20 and 121,386.40 is: 182,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,727.20 : 497,785.20 = 121,386.40 : x
  2. Step 2: Convert to fraction form
    331,727.20/497,785.20 = 121,386.40/x
  3. Step 3: Cross multiply
    331,727.20x = 497,785.20 × 121,386.40
  4. Step 4: Simplify right side
    331,727.20x = 60,424,353,401.28
  5. Step 5: Solve for x
    x = 60,424,353,401.28/331,727.20
  6. Step 6: Final answer
    x = 182,150.74

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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.