Home / 210,704.44-290,770.10-115,210.12

Finding the Fourth Proportional to 210,704.44, 290,770.10 and 115,210.12

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Solution

The fourth proportional to 210,704.44, 290,770.10 and 115,210.12 is: 158,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,704.44 : 290,770.10 = 115,210.12 : x
  2. Step 2: Convert to fraction form
    210,704.44/290,770.10 = 115,210.12/x
  3. Step 3: Cross multiply
    210,704.44x = 290,770.10 × 115,210.12
  4. Step 4: Simplify right side
    210,704.44x = 33,499,658,113.41
  5. Step 5: Solve for x
    x = 33,499,658,113.41/210,704.44
  6. Step 6: Final answer
    x = 158,988.86

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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.