Home / 328,981.29-492,349.10-275,733.36

Finding the Fourth Proportional to 328,981.29, 492,349.10 and 275,733.36

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Solution

The fourth proportional to 328,981.29, 492,349.10 and 275,733.36 is: 412,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,981.29 : 492,349.10 = 275,733.36 : x
  2. Step 2: Convert to fraction form
    328,981.29/492,349.10 = 275,733.36/x
  3. Step 3: Cross multiply
    328,981.29x = 492,349.10 × 275,733.36
  4. Step 4: Simplify right side
    328,981.29x = 135,757,070,257.31
  5. Step 5: Solve for x
    x = 135,757,070,257.31/328,981.29
  6. Step 6: Final answer
    x = 412,658.94

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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.