Home / 210,487.12-290,471.16-114,999.28

Finding the Fourth Proportional to 210,487.12, 290,471.16 and 114,999.28

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Solution

The fourth proportional to 210,487.12, 290,471.16 and 114,999.28 is: 158,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,487.12 : 290,471.16 = 114,999.28 : x
  2. Step 2: Convert to fraction form
    210,487.12/290,471.16 = 114,999.28/x
  3. Step 3: Cross multiply
    210,487.12x = 290,471.16 × 114,999.28
  4. Step 4: Simplify right side
    210,487.12x = 33,403,974,260.76
  5. Step 5: Solve for x
    x = 33,403,974,260.76/210,487.12
  6. Step 6: Final answer
    x = 158,698.42

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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.