Home / 257,063.20-385,364.40-229,069.60

Finding the Fourth Proportional to 257,063.20, 385,364.40 and 229,069.60

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Solution

The fourth proportional to 257,063.20, 385,364.40 and 229,069.60 is: 343,399.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,063.20 : 385,364.40 = 229,069.60 : x
  2. Step 2: Convert to fraction form
    257,063.20/385,364.40 = 229,069.60/x
  3. Step 3: Cross multiply
    257,063.20x = 385,364.40 × 229,069.60
  4. Step 4: Simplify right side
    257,063.20x = 88,275,268,962.24
  5. Step 5: Solve for x
    x = 88,275,268,962.24/257,063.20
  6. Step 6: Final answer
    x = 343,399.09

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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.