Home / 328,500.24-452,941.68-231,720

Finding the Fourth Proportional to 328,500.24, 452,941.68 and 231,720

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Solution

The fourth proportional to 328,500.24, 452,941.68 and 231,720 is: 319,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,500.24 : 452,941.68 = 231,720 : x
  2. Step 2: Convert to fraction form
    328,500.24/452,941.68 = 231,720/x
  3. Step 3: Cross multiply
    328,500.24x = 452,941.68 × 231,720
  4. Step 4: Simplify right side
    328,500.24x = 104,955,646,089.60
  5. Step 5: Solve for x
    x = 104,955,646,089.60/328,500.24
  6. Step 6: Final answer
    x = 319,499.45

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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.