Home / 380,911.12-571,487.40-229,274.26

Finding the Fourth Proportional to 380,911.12, 571,487.40 and 229,274.26

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Solution

The fourth proportional to 380,911.12, 571,487.40 and 229,274.26 is: 343,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,911.12 : 571,487.40 = 229,274.26 : x
  2. Step 2: Convert to fraction form
    380,911.12/571,487.40 = 229,274.26/x
  3. Step 3: Cross multiply
    380,911.12x = 571,487.40 × 229,274.26
  4. Step 4: Simplify right side
    380,911.12x = 131,027,350,734.32
  5. Step 5: Solve for x
    x = 131,027,350,734.32/380,911.12
  6. Step 6: Final answer
    x = 343,984.05

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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.