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Finding the Fourth Proportional to 186,440.22, 279,568.80 and 79,809.12

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Solution

The fourth proportional to 186,440.22, 279,568.80 and 79,809.12 is: 119,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,440.22 : 279,568.80 = 79,809.12 : x
  2. Step 2: Convert to fraction form
    186,440.22/279,568.80 = 79,809.12/x
  3. Step 3: Cross multiply
    186,440.22x = 279,568.80 × 79,809.12
  4. Step 4: Simplify right side
    186,440.22x = 22,312,139,907.46
  5. Step 5: Solve for x
    x = 22,312,139,907.46/186,440.22
  6. Step 6: Final answer
    x = 119,674.50

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