Home / 210,264.76-290,170.86-114,780.28

Finding the Fourth Proportional to 210,264.76, 290,170.86 and 114,780.28

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Solution

The fourth proportional to 210,264.76, 290,170.86 and 114,780.28 is: 158,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,264.76 : 290,170.86 = 114,780.28 : x
  2. Step 2: Convert to fraction form
    210,264.76/290,170.86 = 114,780.28/x
  3. Step 3: Cross multiply
    210,264.76x = 290,170.86 × 114,780.28
  4. Step 4: Simplify right side
    210,264.76x = 33,305,892,558.64
  5. Step 5: Solve for x
    x = 33,305,892,558.64/210,264.76
  6. Step 6: Final answer
    x = 158,399.78

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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.