Home / 649,456.36-974,281.50-200,139.88

Finding the Fourth Proportional to 649,456.36, 974,281.50 and 200,139.88

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Solution

The fourth proportional to 649,456.36, 974,281.50 and 200,139.88 is: 300,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,456.36 : 974,281.50 = 200,139.88 : x
  2. Step 2: Convert to fraction form
    649,456.36/974,281.50 = 200,139.88/x
  3. Step 3: Cross multiply
    649,456.36x = 974,281.50 × 200,139.88
  4. Step 4: Simplify right side
    649,456.36x = 194,992,582,496.22
  5. Step 5: Solve for x
    x = 194,992,582,496.22/649,456.36
  6. Step 6: Final answer
    x = 300,239.70

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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.