Home / 438,830.20-658,266.90-228,878.20

Finding the Fourth Proportional to 438,830.20, 658,266.90 and 228,878.20

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Solution

The fourth proportional to 438,830.20, 658,266.90 and 228,878.20 is: 343,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,830.20 : 658,266.90 = 228,878.20 : x
  2. Step 2: Convert to fraction form
    438,830.20/658,266.90 = 228,878.20/x
  3. Step 3: Cross multiply
    438,830.20x = 658,266.90 × 228,878.20
  4. Step 4: Simplify right side
    438,830.20x = 150,662,943,191.58
  5. Step 5: Solve for x
    x = 150,662,943,191.58/438,830.20
  6. Step 6: Final answer
    x = 343,328.57

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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.