Home / 389,843.32-537,983.70-220,077.44

Finding the Fourth Proportional to 389,843.32, 537,983.70 and 220,077.44

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Solution

The fourth proportional to 389,843.32, 537,983.70 and 220,077.44 is: 303,706.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,843.32 : 537,983.70 = 220,077.44 : x
  2. Step 2: Convert to fraction form
    389,843.32/537,983.70 = 220,077.44/x
  3. Step 3: Cross multiply
    389,843.32x = 537,983.70 × 220,077.44
  4. Step 4: Simplify right side
    389,843.32x = 118,398,075,457.73
  5. Step 5: Solve for x
    x = 118,398,075,457.73/389,843.32
  6. Step 6: Final answer
    x = 303,706.82

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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.