Home / 272,438.74-408,673.48-82,905.28

Finding the Fourth Proportional to 272,438.74, 408,673.48 and 82,905.28

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Solution

The fourth proportional to 272,438.74, 408,673.48 and 82,905.28 is: 124,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,438.74 : 408,673.48 = 82,905.28 : x
  2. Step 2: Convert to fraction form
    272,438.74/408,673.48 = 82,905.28/x
  3. Step 3: Cross multiply
    272,438.74x = 408,673.48 × 82,905.28
  4. Step 4: Simplify right side
    272,438.74x = 33,881,188,873.45
  5. Step 5: Solve for x
    x = 33,881,188,873.45/272,438.74
  6. Step 6: Final answer
    x = 124,362.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.