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Finding the Fourth Proportional to 376,505.56, 519,588.30 and 223,506.28

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Solution

The fourth proportional to 376,505.56, 519,588.30 and 223,506.28 is: 308,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,505.56 : 519,588.30 = 223,506.28 : x
  2. Step 2: Convert to fraction form
    376,505.56/519,588.30 = 223,506.28/x
  3. Step 3: Cross multiply
    376,505.56x = 519,588.30 × 223,506.28
  4. Step 4: Simplify right side
    376,505.56x = 116,131,248,064.52
  5. Step 5: Solve for x
    x = 116,131,248,064.52/376,505.56
  6. Step 6: Final answer
    x = 308,444.98

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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.