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Finding the Fourth Proportional to 517,498.21, 775,984.77 and 236,774.89

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Solution

The fourth proportional to 517,498.21, 775,984.77 and 236,774.89 is: 355,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,498.21 : 775,984.77 = 236,774.89 : x
  2. Step 2: Convert to fraction form
    517,498.21/775,984.77 = 236,774.89/x
  3. Step 3: Cross multiply
    517,498.21x = 775,984.77 × 236,774.89
  4. Step 4: Simplify right side
    517,498.21x = 183,733,708,558.43
  5. Step 5: Solve for x
    x = 183,733,708,558.43/517,498.21
  6. Step 6: Final answer
    x = 355,042.21

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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.