Home / 371,939.20-557,908.80-229,897.60

Finding the Fourth Proportional to 371,939.20, 557,908.80 and 229,897.60

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Solution

The fourth proportional to 371,939.20, 557,908.80 and 229,897.60 is: 344,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,939.20 : 557,908.80 = 229,897.60 : x
  2. Step 2: Convert to fraction form
    371,939.20/557,908.80 = 229,897.60/x
  3. Step 3: Cross multiply
    371,939.20x = 557,908.80 × 229,897.60
  4. Step 4: Simplify right side
    371,939.20x = 128,261,894,138.88
  5. Step 5: Solve for x
    x = 128,261,894,138.88/371,939.20
  6. Step 6: Final answer
    x = 344,846.40

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1.5x scale

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.