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Finding the Fourth Proportional to 376,875.17, 520,169.76 and 231,805.63

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Solution

The fourth proportional to 376,875.17, 520,169.76 and 231,805.63 is: 319,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,875.17 : 520,169.76 = 231,805.63 : x
  2. Step 2: Convert to fraction form
    376,875.17/520,169.76 = 231,805.63/x
  3. Step 3: Cross multiply
    376,875.17x = 520,169.76 × 231,805.63
  4. Step 4: Simplify right side
    376,875.17x = 120,578,279,573.96
  5. Step 5: Solve for x
    x = 120,578,279,573.96/376,875.17
  6. Step 6: Final answer
    x = 319,942.22

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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.