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Finding the Fourth Proportional to 302,610.60, 453,915.90 and 255,371.40

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Solution

The fourth proportional to 302,610.60, 453,915.90 and 255,371.40 is: 383,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,610.60 : 453,915.90 = 255,371.40 : x
  2. Step 2: Convert to fraction form
    302,610.60/453,915.90 = 255,371.40/x
  3. Step 3: Cross multiply
    302,610.60x = 453,915.90 × 255,371.40
  4. Step 4: Simplify right side
    302,610.60x = 115,917,138,865.26
  5. Step 5: Solve for x
    x = 115,917,138,865.26/302,610.60
  6. Step 6: Final answer
    x = 383,057.10

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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.