Home / 354,072.28-531,353.64-140,818.30

Finding the Fourth Proportional to 354,072.28, 531,353.64 and 140,818.30

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Solution

The fourth proportional to 354,072.28, 531,353.64 and 140,818.30 is: 211,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,072.28 : 531,353.64 = 140,818.30 : x
  2. Step 2: Convert to fraction form
    354,072.28/531,353.64 = 140,818.30/x
  3. Step 3: Cross multiply
    354,072.28x = 531,353.64 × 140,818.30
  4. Step 4: Simplify right side
    354,072.28x = 74,824,316,283.61
  5. Step 5: Solve for x
    x = 74,824,316,283.61/354,072.28
  6. Step 6: Final answer
    x = 211,324.98

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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.