Home / 211,470.52-291,842.76-139,724.68

Finding the Fourth Proportional to 211,470.52, 291,842.76 and 139,724.68

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Solution

The fourth proportional to 211,470.52, 291,842.76 and 139,724.68 is: 192,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,470.52 : 291,842.76 = 139,724.68 : x
  2. Step 2: Convert to fraction form
    211,470.52/291,842.76 = 139,724.68/x
  3. Step 3: Cross multiply
    211,470.52x = 291,842.76 × 139,724.68
  4. Step 4: Simplify right side
    211,470.52x = 40,777,636,251.32
  5. Step 5: Solve for x
    x = 40,777,636,251.32/211,470.52
  6. Step 6: Final answer
    x = 192,828.94

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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.