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Finding the Fourth Proportional to 376,892, 565,597.20 and 155,276

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Solution

The fourth proportional to 376,892, 565,597.20 and 155,276 is: 233,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,892 : 565,597.20 = 155,276 : x
  2. Step 2: Convert to fraction form
    376,892/565,597.20 = 155,276/x
  3. Step 3: Cross multiply
    376,892x = 565,597.20 × 155,276
  4. Step 4: Simplify right side
    376,892x = 87,823,670,827.20
  5. Step 5: Solve for x
    x = 87,823,670,827.20/376,892
  6. Step 6: Final answer
    x = 233,020.79

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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.