Home / 452,102.20-678,266.70-199,430.80

Finding the Fourth Proportional to 452,102.20, 678,266.70 and 199,430.80

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Solution

The fourth proportional to 452,102.20, 678,266.70 and 199,430.80 is: 299,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,102.20 : 678,266.70 = 199,430.80 : x
  2. Step 2: Convert to fraction form
    452,102.20/678,266.70 = 199,430.80/x
  3. Step 3: Cross multiply
    452,102.20x = 678,266.70 × 199,430.80
  4. Step 4: Simplify right side
    452,102.20x = 135,267,270,594.36
  5. Step 5: Solve for x
    x = 135,267,270,594.36/452,102.20
  6. Step 6: Final answer
    x = 299,196.22

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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.