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Finding the Fourth Proportional to 186,259.71, 279,366.48 and 53,151.60

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Solution

The fourth proportional to 186,259.71, 279,366.48 and 53,151.60 is: 79,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,259.71 : 279,366.48 = 53,151.60 : x
  2. Step 2: Convert to fraction form
    186,259.71/279,366.48 = 53,151.60/x
  3. Step 3: Cross multiply
    186,259.71x = 279,366.48 × 53,151.60
  4. Step 4: Simplify right side
    186,259.71x = 14,848,775,398.37
  5. Step 5: Solve for x
    x = 14,848,775,398.37/186,259.71
  6. Step 6: Final answer
    x = 79,720.81

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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.