Home / 210,852.51-290,981.12-115,359.18

Finding the Fourth Proportional to 210,852.51, 290,981.12 and 115,359.18

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Solution

The fourth proportional to 210,852.51, 290,981.12 and 115,359.18 is: 159,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,852.51 : 290,981.12 = 115,359.18 : x
  2. Step 2: Convert to fraction form
    210,852.51/290,981.12 = 115,359.18/x
  3. Step 3: Cross multiply
    210,852.51x = 290,981.12 × 115,359.18
  4. Step 4: Simplify right side
    210,852.51x = 33,567,343,398.68
  5. Step 5: Solve for x
    x = 33,567,343,398.68/210,852.51
  6. Step 6: Final answer
    x = 159,198.22

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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.