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Finding the Fourth Proportional to 379,576.40, 568,178.75 and 253,320.08

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Solution

The fourth proportional to 379,576.40, 568,178.75 and 253,320.08 is: 379,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,576.40 : 568,178.75 = 253,320.08 : x
  2. Step 2: Convert to fraction form
    379,576.40/568,178.75 = 253,320.08/x
  3. Step 3: Cross multiply
    379,576.40x = 568,178.75 × 253,320.08
  4. Step 4: Simplify right side
    379,576.40x = 143,931,084,196.71
  5. Step 5: Solve for x
    x = 143,931,084,196.71/379,576.40
  6. Step 6: Final answer
    x = 379,188.71

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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.