Home / 210,580.69-290,601.38-115,087.36

Finding the Fourth Proportional to 210,580.69, 290,601.38 and 115,087.36

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Solution

The fourth proportional to 210,580.69, 290,601.38 and 115,087.36 is: 158,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,580.69 : 290,601.38 = 115,087.36 : x
  2. Step 2: Convert to fraction form
    210,580.69/290,601.38 = 115,087.36/x
  3. Step 3: Cross multiply
    210,580.69x = 290,601.38 × 115,087.36
  4. Step 4: Simplify right side
    210,580.69x = 33,444,545,636.56
  5. Step 5: Solve for x
    x = 33,444,545,636.56/210,580.69
  6. Step 6: Final answer
    x = 158,820.57

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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.