Home / 268,580.16-370,640.49-147,729.60

Finding the Fourth Proportional to 268,580.16, 370,640.49 and 147,729.60

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Solution

The fourth proportional to 268,580.16, 370,640.49 and 147,729.60 is: 203,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,580.16 : 370,640.49 = 147,729.60 : x
  2. Step 2: Convert to fraction form
    268,580.16/370,640.49 = 147,729.60/x
  3. Step 3: Cross multiply
    268,580.16x = 370,640.49 × 147,729.60
  4. Step 4: Simplify right side
    268,580.16x = 54,754,571,331.50
  5. Step 5: Solve for x
    x = 54,754,571,331.50/268,580.16
  6. Step 6: Final answer
    x = 203,866.78

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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.