Home / 268,128.19-370,019.95-147,272.31

Finding the Fourth Proportional to 268,128.19, 370,019.95 and 147,272.31

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Solution

The fourth proportional to 268,128.19, 370,019.95 and 147,272.31 is: 203,237.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,128.19 : 370,019.95 = 147,272.31 : x
  2. Step 2: Convert to fraction form
    268,128.19/370,019.95 = 147,272.31/x
  3. Step 3: Cross multiply
    268,128.19x = 370,019.95 × 147,272.31
  4. Step 4: Simplify right side
    268,128.19x = 54,493,692,414.40
  5. Step 5: Solve for x
    x = 54,493,692,414.40/268,128.19
  6. Step 6: Final answer
    x = 203,237.46

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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.