Home / 344,869.12-517,430.04-145,239.76

Finding the Fourth Proportional to 344,869.12, 517,430.04 and 145,239.76

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Solution

The fourth proportional to 344,869.12, 517,430.04 and 145,239.76 is: 217,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,869.12 : 517,430.04 = 145,239.76 : x
  2. Step 2: Convert to fraction form
    344,869.12/517,430.04 = 145,239.76/x
  3. Step 3: Cross multiply
    344,869.12x = 517,430.04 × 145,239.76
  4. Step 4: Simplify right side
    344,869.12x = 75,151,414,826.39
  5. Step 5: Solve for x
    x = 75,151,414,826.39/344,869.12
  6. Step 6: Final answer
    x = 217,912.86

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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.