Home / 257,434.10-385,276.35-225,941.30

Finding the Fourth Proportional to 257,434.10, 385,276.35 and 225,941.30

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Solution

The fourth proportional to 257,434.10, 385,276.35 and 225,941.30 is: 338,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,434.10 : 385,276.35 = 225,941.30 : x
  2. Step 2: Convert to fraction form
    257,434.10/385,276.35 = 225,941.30/x
  3. Step 3: Cross multiply
    257,434.10x = 385,276.35 × 225,941.30
  4. Step 4: Simplify right side
    257,434.10x = 87,049,839,378.26
  5. Step 5: Solve for x
    x = 87,049,839,378.26/257,434.10
  6. Step 6: Final answer
    x = 338,144.17

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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.