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Finding the Fourth Proportional to 517,149, 775,985.94 and 236,736.72

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Solution

The fourth proportional to 517,149, 775,985.94 and 236,736.72 is: 355,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,149 : 775,985.94 = 236,736.72 : x
  2. Step 2: Convert to fraction form
    517,149/775,985.94 = 236,736.72/x
  3. Step 3: Cross multiply
    517,149x = 775,985.94 × 236,736.72
  4. Step 4: Simplify right side
    517,149x = 183,704,366,201.72
  5. Step 5: Solve for x
    x = 183,704,366,201.72/517,149
  6. Step 6: Final answer
    x = 355,225.22

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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.