Home / 438,875.20-658,334.40-228,923.20

Finding the Fourth Proportional to 438,875.20, 658,334.40 and 228,923.20

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Solution

The fourth proportional to 438,875.20, 658,334.40 and 228,923.20 is: 343,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,875.20 : 658,334.40 = 228,923.20 : x
  2. Step 2: Convert to fraction form
    438,875.20/658,334.40 = 228,923.20/x
  3. Step 3: Cross multiply
    438,875.20x = 658,334.40 × 228,923.20
  4. Step 4: Simplify right side
    438,875.20x = 150,708,017,518.08
  5. Step 5: Solve for x
    x = 150,708,017,518.08/438,875.20
  6. Step 6: Final answer
    x = 343,396.07

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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.