Home / 396,005.56-546,938.70-268,459.72

Finding the Fourth Proportional to 396,005.56, 546,938.70 and 268,459.72

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Solution

The fourth proportional to 396,005.56, 546,938.70 and 268,459.72 is: 370,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,005.56 : 546,938.70 = 268,459.72 : x
  2. Step 2: Convert to fraction form
    396,005.56/546,938.70 = 268,459.72/x
  3. Step 3: Cross multiply
    396,005.56x = 546,938.70 × 268,459.72
  4. Step 4: Simplify right side
    396,005.56x = 146,831,010,150.22
  5. Step 5: Solve for x
    x = 146,831,010,150.22/396,005.56
  6. Step 6: Final answer
    x = 370,780.18

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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.