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Finding the Fourth Proportional to 376,731.88, 519,659.40 and 223,666.24

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Solution

The fourth proportional to 376,731.88, 519,659.40 and 223,666.24 is: 308,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,731.88 : 519,659.40 = 223,666.24 : x
  2. Step 2: Convert to fraction form
    376,731.88/519,659.40 = 223,666.24/x
  3. Step 3: Cross multiply
    376,731.88x = 519,659.40 × 223,666.24
  4. Step 4: Simplify right side
    376,731.88x = 116,230,264,078.66
  5. Step 5: Solve for x
    x = 116,230,264,078.66/376,731.88
  6. Step 6: Final answer
    x = 308,522.51

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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.