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Finding the Fourth Proportional to 254,299.72, 381,700.68 and 190,899.40

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Solution

The fourth proportional to 254,299.72, 381,700.68 and 190,899.40 is: 286,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,299.72 : 381,700.68 = 190,899.40 : x
  2. Step 2: Convert to fraction form
    254,299.72/381,700.68 = 190,899.40/x
  3. Step 3: Cross multiply
    254,299.72x = 381,700.68 × 190,899.40
  4. Step 4: Simplify right side
    254,299.72x = 72,866,430,791.59
  5. Step 5: Solve for x
    x = 72,866,430,791.59/254,299.72
  6. Step 6: Final answer
    x = 286,537.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.