Home / 210,799.64-290,821.80-134,305.04

Finding the Fourth Proportional to 210,799.64, 290,821.80 and 134,305.04

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Solution

The fourth proportional to 210,799.64, 290,821.80 and 134,305.04 is: 185,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,799.64 : 290,821.80 = 134,305.04 : x
  2. Step 2: Convert to fraction form
    210,799.64/290,821.80 = 134,305.04/x
  3. Step 3: Cross multiply
    210,799.64x = 290,821.80 × 134,305.04
  4. Step 4: Simplify right side
    210,799.64x = 39,058,833,481.87
  5. Step 5: Solve for x
    x = 39,058,833,481.87/210,799.64
  6. Step 6: Final answer
    x = 185,288.90

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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.