Home / 306,279.18-459,419.31-119,290.68

Finding the Fourth Proportional to 306,279.18, 459,419.31 and 119,290.68

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Solution

The fourth proportional to 306,279.18, 459,419.31 and 119,290.68 is: 178,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,279.18 : 459,419.31 = 119,290.68 : x
  2. Step 2: Convert to fraction form
    306,279.18/459,419.31 = 119,290.68/x
  3. Step 3: Cross multiply
    306,279.18x = 459,419.31 × 119,290.68
  4. Step 4: Simplify right side
    306,279.18x = 54,804,441,895.03
  5. Step 5: Solve for x
    x = 54,804,441,895.03/306,279.18
  6. Step 6: Final answer
    x = 178,936.23

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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.