Home / 250,346.40-375,480.36-81,865.32

Finding the Fourth Proportional to 250,346.40, 375,480.36 and 81,865.32

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Solution

The fourth proportional to 250,346.40, 375,480.36 and 81,865.32 is: 122,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,346.40 : 375,480.36 = 81,865.32 : x
  2. Step 2: Convert to fraction form
    250,346.40/375,480.36 = 81,865.32/x
  3. Step 3: Cross multiply
    250,346.40x = 375,480.36 × 81,865.32
  4. Step 4: Simplify right side
    250,346.40x = 30,738,819,825.12
  5. Step 5: Solve for x
    x = 30,738,819,825.12/250,346.40
  6. Step 6: Final answer
    x = 122,785.15

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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.