Home / 210,852.73-290,983.76-115,359.47

Finding the Fourth Proportional to 210,852.73, 290,983.76 and 115,359.47

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Solution

The fourth proportional to 210,852.73, 290,983.76 and 115,359.47 is: 159,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,852.73 : 290,983.76 = 115,359.47 : x
  2. Step 2: Convert to fraction form
    210,852.73/290,983.76 = 115,359.47/x
  3. Step 3: Cross multiply
    210,852.73x = 290,983.76 × 115,359.47
  4. Step 4: Simplify right side
    210,852.73x = 33,567,732,332.21
  5. Step 5: Solve for x
    x = 33,567,732,332.21/210,852.73
  6. Step 6: Final answer
    x = 159,199.89

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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.