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Finding the Fourth Proportional to 375,760.84, 518,548.05 and 203,678.11

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Solution

The fourth proportional to 375,760.84, 518,548.05 and 203,678.11 is: 281,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,760.84 : 518,548.05 = 203,678.11 : x
  2. Step 2: Convert to fraction form
    375,760.84/518,548.05 = 203,678.11/x
  3. Step 3: Cross multiply
    375,760.84x = 518,548.05 × 203,678.11
  4. Step 4: Simplify right side
    375,760.84x = 105,616,886,768.19
  5. Step 5: Solve for x
    x = 105,616,886,768.19/375,760.84
  6. Step 6: Final answer
    x = 281,074.76

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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.