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Finding the Fourth Proportional to 186,580.56, 279,870.72 and 68,187.36

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Solution

The fourth proportional to 186,580.56, 279,870.72 and 68,187.36 is: 102,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,580.56 : 279,870.72 = 68,187.36 : x
  2. Step 2: Convert to fraction form
    186,580.56/279,870.72 = 68,187.36/x
  3. Step 3: Cross multiply
    186,580.56x = 279,870.72 × 68,187.36
  4. Step 4: Simplify right side
    186,580.56x = 19,083,645,538.10
  5. Step 5: Solve for x
    x = 19,083,645,538.10/186,580.56
  6. Step 6: Final answer
    x = 102,281.00

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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.