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Finding the Fourth Proportional to 251,330.85, 376,996.28 and 239,666.85

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Solution

The fourth proportional to 251,330.85, 376,996.28 and 239,666.85 is: 359,500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,330.85 : 376,996.28 = 239,666.85 : x
  2. Step 2: Convert to fraction form
    251,330.85/376,996.28 = 239,666.85/x
  3. Step 3: Cross multiply
    251,330.85x = 376,996.28 × 239,666.85
  4. Step 4: Simplify right side
    251,330.85x = 90,353,509,690.98
  5. Step 5: Solve for x
    x = 90,353,509,690.98/251,330.85
  6. Step 6: Final answer
    x = 359,500.28

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1.5x scale

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.