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Finding the Fourth Proportional to 186,416.59, 279,619.27 and 51,488.89

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Solution

The fourth proportional to 186,416.59, 279,619.27 and 51,488.89 is: 77,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,416.59 : 279,619.27 = 51,488.89 : x
  2. Step 2: Convert to fraction form
    186,416.59/279,619.27 = 51,488.89/x
  3. Step 3: Cross multiply
    186,416.59x = 279,619.27 × 51,488.89
  4. Step 4: Simplify right side
    186,416.59x = 14,397,285,834.91
  5. Step 5: Solve for x
    x = 14,397,285,834.91/186,416.59
  6. Step 6: Final answer
    x = 77,231.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.