Home / 210,498.12-290,487.06-115,004.79

Finding the Fourth Proportional to 210,498.12, 290,487.06 and 115,004.79

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Solution

The fourth proportional to 210,498.12, 290,487.06 and 115,004.79 is: 158,706.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,498.12 : 290,487.06 = 115,004.79 : x
  2. Step 2: Convert to fraction form
    210,498.12/290,487.06 = 115,004.79/x
  3. Step 3: Cross multiply
    210,498.12x = 290,487.06 × 115,004.79
  4. Step 4: Simplify right side
    210,498.12x = 33,407,403,333.02
  5. Step 5: Solve for x
    x = 33,407,403,333.02/210,498.12
  6. Step 6: Final answer
    x = 158,706.42

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1.5x scale

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.