Home / 208,761.95-313,139.27-144,660.98

Finding the Fourth Proportional to 208,761.95, 313,139.27 and 144,660.98

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Solution

The fourth proportional to 208,761.95, 313,139.27 and 144,660.98 is: 216,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,761.95 : 313,139.27 = 144,660.98 : x
  2. Step 2: Convert to fraction form
    208,761.95/313,139.27 = 144,660.98/x
  3. Step 3: Cross multiply
    208,761.95x = 313,139.27 × 144,660.98
  4. Step 4: Simplify right side
    208,761.95x = 45,299,031,385.68
  5. Step 5: Solve for x
    x = 45,299,031,385.68/208,761.95
  6. Step 6: Final answer
    x = 216,988.93

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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.