Home / 399,743.40-599,538.30-119,269.80

Finding the Fourth Proportional to 399,743.40, 599,538.30 and 119,269.80

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Solution

The fourth proportional to 399,743.40, 599,538.30 and 119,269.80 is: 178,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,743.40 : 599,538.30 = 119,269.80 : x
  2. Step 2: Convert to fraction form
    399,743.40/599,538.30 = 119,269.80/x
  3. Step 3: Cross multiply
    399,743.40x = 599,538.30 × 119,269.80
  4. Step 4: Simplify right side
    399,743.40x = 71,506,813,133.34
  5. Step 5: Solve for x
    x = 71,506,813,133.34/399,743.40
  6. Step 6: Final answer
    x = 178,881.79

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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.