Home / 210,580.19-290,600.69-115,086.86

Finding the Fourth Proportional to 210,580.19, 290,600.69 and 115,086.86

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Solution

The fourth proportional to 210,580.19, 290,600.69 and 115,086.86 is: 158,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,580.19 : 290,600.69 = 115,086.86 : x
  2. Step 2: Convert to fraction form
    210,580.19/290,600.69 = 115,086.86/x
  3. Step 3: Cross multiply
    210,580.19x = 290,600.69 × 115,086.86
  4. Step 4: Simplify right side
    210,580.19x = 33,444,318,897.50
  5. Step 5: Solve for x
    x = 33,444,318,897.50/210,580.19
  6. Step 6: Final answer
    x = 158,819.88

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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.