Home / 279,931.22-420,139.46-146,905.46

Finding the Fourth Proportional to 279,931.22, 420,139.46 and 146,905.46

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Solution

The fourth proportional to 279,931.22, 420,139.46 and 146,905.46 is: 220,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,931.22 : 420,139.46 = 146,905.46 : x
  2. Step 2: Convert to fraction form
    279,931.22/420,139.46 = 146,905.46/x
  3. Step 3: Cross multiply
    279,931.22x = 420,139.46 × 146,905.46
  4. Step 4: Simplify right side
    279,931.22x = 61,720,780,635.45
  5. Step 5: Solve for x
    x = 61,720,780,635.45/279,931.22
  6. Step 6: Final answer
    x = 220,485.52

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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.