Home / 331,316.20-497,103.90-120,975.40

Finding the Fourth Proportional to 331,316.20, 497,103.90 and 120,975.40

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Solution

The fourth proportional to 331,316.20, 497,103.90 and 120,975.40 is: 181,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,316.20 : 497,103.90 = 120,975.40 : x
  2. Step 2: Convert to fraction form
    331,316.20/497,103.90 = 120,975.40/x
  3. Step 3: Cross multiply
    331,316.20x = 497,103.90 × 120,975.40
  4. Step 4: Simplify right side
    331,316.20x = 60,137,343,144.06
  5. Step 5: Solve for x
    x = 60,137,343,144.06/331,316.20
  6. Step 6: Final answer
    x = 181,510.42

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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.