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Finding the Fourth Proportional to 328,890.30, 492,351.30 and 293,460.90

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Solution

The fourth proportional to 328,890.30, 492,351.30 and 293,460.90 is: 439,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,890.30 : 492,351.30 = 293,460.90 : x
  2. Step 2: Convert to fraction form
    328,890.30/492,351.30 = 293,460.90/x
  3. Step 3: Cross multiply
    328,890.30x = 492,351.30 × 293,460.90
  4. Step 4: Simplify right side
    328,890.30x = 144,485,855,614.17
  5. Step 5: Solve for x
    x = 144,485,855,614.17/328,890.30
  6. Step 6: Final answer
    x = 439,313.22

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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.