Home / 211,458.65-291,732.86-134,980.61

Finding the Fourth Proportional to 211,458.65, 291,732.86 and 134,980.61

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Solution

The fourth proportional to 211,458.65, 291,732.86 and 134,980.61 is: 186,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,458.65 : 291,732.86 = 134,980.61 : x
  2. Step 2: Convert to fraction form
    211,458.65/291,732.86 = 134,980.61/x
  3. Step 3: Cross multiply
    211,458.65x = 291,732.86 × 134,980.61
  4. Step 4: Simplify right side
    211,458.65x = 39,378,278,278.63
  5. Step 5: Solve for x
    x = 39,378,278,278.63/211,458.65
  6. Step 6: Final answer
    x = 186,222.13

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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.