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Finding the Fourth Proportional to 436,281.63, 654,422.63 and 136,785.54

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Solution

The fourth proportional to 436,281.63, 654,422.63 and 136,785.54 is: 205,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,281.63 : 654,422.63 = 136,785.54 : x
  2. Step 2: Convert to fraction form
    436,281.63/654,422.63 = 136,785.54/x
  3. Step 3: Cross multiply
    436,281.63x = 654,422.63 × 136,785.54
  4. Step 4: Simplify right side
    436,281.63x = 89,515,554,602.93
  5. Step 5: Solve for x
    x = 89,515,554,602.93/436,281.63
  6. Step 6: Final answer
    x = 205,178.37

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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.