Home / 302,936.70-455,389.20-259,634.10

Finding the Fourth Proportional to 302,936.70, 455,389.20 and 259,634.10

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Solution

The fourth proportional to 302,936.70, 455,389.20 and 259,634.10 is: 390,294.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,936.70 : 455,389.20 = 259,634.10 : x
  2. Step 2: Convert to fraction form
    302,936.70/455,389.20 = 259,634.10/x
  3. Step 3: Cross multiply
    302,936.70x = 455,389.20 × 259,634.10
  4. Step 4: Simplify right side
    302,936.70x = 118,234,565,091.72
  5. Step 5: Solve for x
    x = 118,234,565,091.72/302,936.70
  6. Step 6: Final answer
    x = 390,294.62

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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.