Home / 212,828.70-319,243.05-178,614.30

Finding the Fourth Proportional to 212,828.70, 319,243.05 and 178,614.30

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Solution

The fourth proportional to 212,828.70, 319,243.05 and 178,614.30 is: 267,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,828.70 : 319,243.05 = 178,614.30 : x
  2. Step 2: Convert to fraction form
    212,828.70/319,243.05 = 178,614.30/x
  3. Step 3: Cross multiply
    212,828.70x = 319,243.05 × 178,614.30
  4. Step 4: Simplify right side
    212,828.70x = 57,021,373,905.62
  5. Step 5: Solve for x
    x = 57,021,373,905.62/212,828.70
  6. Step 6: Final answer
    x = 267,921.45

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1.5x scale

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.