Home / 380,867.40-571,301.10-254,896.20

Finding the Fourth Proportional to 380,867.40, 571,301.10 and 254,896.20

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Solution

The fourth proportional to 380,867.40, 571,301.10 and 254,896.20 is: 382,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,867.40 : 571,301.10 = 254,896.20 : x
  2. Step 2: Convert to fraction form
    380,867.40/571,301.10 = 254,896.20/x
  3. Step 3: Cross multiply
    380,867.40x = 571,301.10 × 254,896.20
  4. Step 4: Simplify right side
    380,867.40x = 145,622,479,445.82
  5. Step 5: Solve for x
    x = 145,622,479,445.82/380,867.40
  6. Step 6: Final answer
    x = 382,344.30

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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.