Home / 210,849.12-290,970.24-115,356.96

Finding the Fourth Proportional to 210,849.12, 290,970.24 and 115,356.96

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Solution

The fourth proportional to 210,849.12, 290,970.24 and 115,356.96 is: 159,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,849.12 : 290,970.24 = 115,356.96 : x
  2. Step 2: Convert to fraction form
    210,849.12/290,970.24 = 115,356.96/x
  3. Step 3: Cross multiply
    210,849.12x = 290,970.24 × 115,356.96
  4. Step 4: Simplify right side
    210,849.12x = 33,565,442,336.87
  5. Step 5: Solve for x
    x = 33,565,442,336.87/210,849.12
  6. Step 6: Final answer
    x = 159,191.76

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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.