Home / 309,263.45-426,783.33-173,298.47

Finding the Fourth Proportional to 309,263.45, 426,783.33 and 173,298.47

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Solution

The fourth proportional to 309,263.45, 426,783.33 and 173,298.47 is: 239,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,263.45 : 426,783.33 = 173,298.47 : x
  2. Step 2: Convert to fraction form
    309,263.45/426,783.33 = 173,298.47/x
  3. Step 3: Cross multiply
    309,263.45x = 426,783.33 × 173,298.47
  4. Step 4: Simplify right side
    309,263.45x = 73,960,895,976.59
  5. Step 5: Solve for x
    x = 73,960,895,976.59/309,263.45
  6. Step 6: Final answer
    x = 239,151.76

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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.