Home / 268,788.78-370,928.43-155,609.10

Finding the Fourth Proportional to 268,788.78, 370,928.43 and 155,609.10

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Solution

The fourth proportional to 268,788.78, 370,928.43 and 155,609.10 is: 214,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,788.78 : 370,928.43 = 155,609.10 : x
  2. Step 2: Convert to fraction form
    268,788.78/370,928.43 = 155,609.10/x
  3. Step 3: Cross multiply
    268,788.78x = 370,928.43 × 155,609.10
  4. Step 4: Simplify right side
    268,788.78x = 57,719,839,156.71
  5. Step 5: Solve for x
    x = 57,719,839,156.71/268,788.78
  6. Step 6: Final answer
    x = 214,740.51

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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.