Home / 344,053.12-515,154.66-280,611.50

Finding the Fourth Proportional to 344,053.12, 515,154.66 and 280,611.50

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Solution

The fourth proportional to 344,053.12, 515,154.66 and 280,611.50 is: 420,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,053.12 : 515,154.66 = 280,611.50 : x
  2. Step 2: Convert to fraction form
    344,053.12/515,154.66 = 280,611.50/x
  3. Step 3: Cross multiply
    344,053.12x = 515,154.66 × 280,611.50
  4. Step 4: Simplify right side
    344,053.12x = 144,558,321,874.59
  5. Step 5: Solve for x
    x = 144,558,321,874.59/344,053.12
  6. Step 6: Final answer
    x = 420,162.80

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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.