Home / 380,836.48-571,055.04-131,459.20

Finding the Fourth Proportional to 380,836.48, 571,055.04 and 131,459.20

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Solution

The fourth proportional to 380,836.48, 571,055.04 and 131,459.20 is: 197,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,836.48 : 571,055.04 = 131,459.20 : x
  2. Step 2: Convert to fraction form
    380,836.48/571,055.04 = 131,459.20/x
  3. Step 3: Cross multiply
    380,836.48x = 571,055.04 × 131,459.20
  4. Step 4: Simplify right side
    380,836.48x = 75,070,438,714.37
  5. Step 5: Solve for x
    x = 75,070,438,714.37/380,836.48
  6. Step 6: Final answer
    x = 197,119.87

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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.