Home / 320,052.48-441,187.20-212,432.64

Finding the Fourth Proportional to 320,052.48, 441,187.20 and 212,432.64

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Solution

The fourth proportional to 320,052.48, 441,187.20 and 212,432.64 is: 292,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,052.48 : 441,187.20 = 212,432.64 : x
  2. Step 2: Convert to fraction form
    320,052.48/441,187.20 = 212,432.64/x
  3. Step 3: Cross multiply
    320,052.48x = 441,187.20 × 212,432.64
  4. Step 4: Simplify right side
    320,052.48x = 93,722,561,630.21
  5. Step 5: Solve for x
    x = 93,722,561,630.21/320,052.48
  6. Step 6: Final answer
    x = 292,834.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.