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Finding the Fourth Proportional to 375,647.84, 518,393.02 and 203,570.60

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Solution

The fourth proportional to 375,647.84, 518,393.02 and 203,570.60 is: 280,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,647.84 : 518,393.02 = 203,570.60 : x
  2. Step 2: Convert to fraction form
    375,647.84/518,393.02 = 203,570.60/x
  3. Step 3: Cross multiply
    375,647.84x = 518,393.02 × 203,570.60
  4. Step 4: Simplify right side
    375,647.84x = 105,529,575,016.32
  5. Step 5: Solve for x
    x = 105,529,575,016.32/375,647.84
  6. Step 6: Final answer
    x = 280,926.88

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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.