Home / 222,390.19-306,875.55-126,878.50

Finding the Fourth Proportional to 222,390.19, 306,875.55 and 126,878.50

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Solution

The fourth proportional to 222,390.19, 306,875.55 and 126,878.50 is: 175,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,390.19 : 306,875.55 = 126,878.50 : x
  2. Step 2: Convert to fraction form
    222,390.19/306,875.55 = 126,878.50/x
  3. Step 3: Cross multiply
    222,390.19x = 306,875.55 × 126,878.50
  4. Step 4: Simplify right side
    222,390.19x = 38,935,909,470.68
  5. Step 5: Solve for x
    x = 38,935,909,470.68/222,390.19
  6. Step 6: Final answer
    x = 175,079.26

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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.