Home / 268,878.62-371,011.38-155,679.50

Finding the Fourth Proportional to 268,878.62, 371,011.38 and 155,679.50

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Solution

The fourth proportional to 268,878.62, 371,011.38 and 155,679.50 is: 214,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878.62 : 371,011.38 = 155,679.50 : x
  2. Step 2: Convert to fraction form
    268,878.62/371,011.38 = 155,679.50/x
  3. Step 3: Cross multiply
    268,878.62x = 371,011.38 × 155,679.50
  4. Step 4: Simplify right side
    268,878.62x = 57,758,866,132.71
  5. Step 5: Solve for x
    x = 57,758,866,132.71/268,878.62
  6. Step 6: Final answer
    x = 214,813.90

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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.