Home / 279,269.31-385,380.14-151,945.41

Finding the Fourth Proportional to 279,269.31, 385,380.14 and 151,945.41

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Solution

The fourth proportional to 279,269.31, 385,380.14 and 151,945.41 is: 209,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,269.31 : 385,380.14 = 151,945.41 : x
  2. Step 2: Convert to fraction form
    279,269.31/385,380.14 = 151,945.41/x
  3. Step 3: Cross multiply
    279,269.31x = 385,380.14 × 151,945.41
  4. Step 4: Simplify right side
    279,269.31x = 58,556,742,618.43
  5. Step 5: Solve for x
    x = 58,556,742,618.43/279,269.31
  6. Step 6: Final answer
    x = 209,678.40

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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.