Home / 239,835.50-331,016.31-143,045.57

Finding the Fourth Proportional to 239,835.50, 331,016.31 and 143,045.57

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Solution

The fourth proportional to 239,835.50, 331,016.31 and 143,045.57 is: 197,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,835.50 : 331,016.31 = 143,045.57 : x
  2. Step 2: Convert to fraction form
    239,835.50/331,016.31 = 143,045.57/x
  3. Step 3: Cross multiply
    239,835.50x = 331,016.31 × 143,045.57
  4. Step 4: Simplify right side
    239,835.50x = 47,350,415,088.17
  5. Step 5: Solve for x
    x = 47,350,415,088.17/239,835.50
  6. Step 6: Final answer
    x = 197,428.72

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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.