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Finding the Fourth Proportional to 328,299.30, 452,975.87 and 199,234.89

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Solution

The fourth proportional to 328,299.30, 452,975.87 and 199,234.89 is: 274,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,299.30 : 452,975.87 = 199,234.89 : x
  2. Step 2: Convert to fraction form
    328,299.30/452,975.87 = 199,234.89/x
  3. Step 3: Cross multiply
    328,299.30x = 452,975.87 × 199,234.89
  4. Step 4: Simplify right side
    328,299.30x = 90,248,598,130.19
  5. Step 5: Solve for x
    x = 90,248,598,130.19/328,299.30
  6. Step 6: Final answer
    x = 274,897.32

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1.5x scale

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.