Home / 257,912.72-355,926.56-144,742.40

Finding the Fourth Proportional to 257,912.72, 355,926.56 and 144,742.40

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Solution

The fourth proportional to 257,912.72, 355,926.56 and 144,742.40 is: 199,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,912.72 : 355,926.56 = 144,742.40 : x
  2. Step 2: Convert to fraction form
    257,912.72/355,926.56 = 144,742.40/x
  3. Step 3: Cross multiply
    257,912.72x = 355,926.56 × 144,742.40
  4. Step 4: Simplify right side
    257,912.72x = 51,517,664,518.14
  5. Step 5: Solve for x
    x = 51,517,664,518.14/257,912.72
  6. Step 6: Final answer
    x = 199,748.44

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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.