Home / 210,743.10-290,810.67-115,247.76

Finding the Fourth Proportional to 210,743.10, 290,810.67 and 115,247.76

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Solution

The fourth proportional to 210,743.10, 290,810.67 and 115,247.76 is: 159,033.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,743.10 : 290,810.67 = 115,247.76 : x
  2. Step 2: Convert to fraction form
    210,743.10/290,810.67 = 115,247.76/x
  3. Step 3: Cross multiply
    210,743.10x = 290,810.67 × 115,247.76
  4. Step 4: Simplify right side
    210,743.10x = 33,515,278,301.60
  5. Step 5: Solve for x
    x = 33,515,278,301.60/210,743.10
  6. Step 6: Final answer
    x = 159,033.81

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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.