Home / 268,540.72-370,557.48-155,342.32

Finding the Fourth Proportional to 268,540.72, 370,557.48 and 155,342.32

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Solution

The fourth proportional to 268,540.72, 370,557.48 and 155,342.32 is: 214,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,540.72 : 370,557.48 = 155,342.32 : x
  2. Step 2: Convert to fraction form
    268,540.72/370,557.48 = 155,342.32/x
  3. Step 3: Cross multiply
    268,540.72x = 370,557.48 × 155,342.32
  4. Step 4: Simplify right side
    268,540.72x = 57,563,258,636.55
  5. Step 5: Solve for x
    x = 57,563,258,636.55/268,540.72
  6. Step 6: Final answer
    x = 214,355.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.