Home / 315,783.30-435,733.38-179,822.37

Finding the Fourth Proportional to 315,783.30, 435,733.38 and 179,822.37

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Solution

The fourth proportional to 315,783.30, 435,733.38 and 179,822.37 is: 248,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,783.30 : 435,733.38 = 179,822.37 : x
  2. Step 2: Convert to fraction form
    315,783.30/435,733.38 = 179,822.37/x
  3. Step 3: Cross multiply
    315,783.30x = 435,733.38 × 179,822.37
  4. Step 4: Simplify right side
    315,783.30x = 78,354,609,079.71
  5. Step 5: Solve for x
    x = 78,354,609,079.71/315,783.30
  6. Step 6: Final answer
    x = 248,127.78

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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.