Home / 210,190.07-290,062.29-149,865.81

Finding the Fourth Proportional to 210,190.07, 290,062.29 and 149,865.81

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Solution

The fourth proportional to 210,190.07, 290,062.29 and 149,865.81 is: 206,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,190.07 : 290,062.29 = 149,865.81 : x
  2. Step 2: Convert to fraction form
    210,190.07/290,062.29 = 149,865.81/x
  3. Step 3: Cross multiply
    210,190.07x = 290,062.29 × 149,865.81
  4. Step 4: Simplify right side
    210,190.07x = 43,470,420,041.30
  5. Step 5: Solve for x
    x = 43,470,420,041.30/210,190.07
  6. Step 6: Final answer
    x = 206,814.81

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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.