Home / 211,474.23-291,834.59-115,981.31

Finding the Fourth Proportional to 211,474.23, 291,834.59 and 115,981.31

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Solution

The fourth proportional to 211,474.23, 291,834.59 and 115,981.31 is: 160,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,474.23 : 291,834.59 = 115,981.31 : x
  2. Step 2: Convert to fraction form
    211,474.23/291,834.59 = 115,981.31/x
  3. Step 3: Cross multiply
    211,474.23x = 291,834.59 × 115,981.31
  4. Step 4: Simplify right side
    211,474.23x = 33,847,356,012.43
  5. Step 5: Solve for x
    x = 33,847,356,012.43/211,474.23
  6. Step 6: Final answer
    x = 160,054.28

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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.