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Finding the Fourth Proportional to 370,277.78, 510,980.42 and 200,511.90

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Solution

The fourth proportional to 370,277.78, 510,980.42 and 200,511.90 is: 276,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,277.78 : 510,980.42 = 200,511.90 : x
  2. Step 2: Convert to fraction form
    370,277.78/510,980.42 = 200,511.90/x
  3. Step 3: Cross multiply
    370,277.78x = 510,980.42 × 200,511.90
  4. Step 4: Simplify right side
    370,277.78x = 102,457,654,877.00
  5. Step 5: Solve for x
    x = 102,457,654,877.00/370,277.78
  6. Step 6: Final answer
    x = 276,704.84

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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.