Home / 210,729.07-290,806.23-115,244.65

Finding the Fourth Proportional to 210,729.07, 290,806.23 and 115,244.65

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Solution

The fourth proportional to 210,729.07, 290,806.23 and 115,244.65 is: 159,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,729.07 : 290,806.23 = 115,244.65 : x
  2. Step 2: Convert to fraction form
    210,729.07/290,806.23 = 115,244.65/x
  3. Step 3: Cross multiply
    210,729.07x = 290,806.23 × 115,244.65
  4. Step 4: Simplify right side
    210,729.07x = 33,513,862,194.17
  5. Step 5: Solve for x
    x = 33,513,862,194.17/210,729.07
  6. Step 6: Final answer
    x = 159,037.68

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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.