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Finding the Fourth Proportional to 616,194.95, 850,203.30 and 357,918.43

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Solution

The fourth proportional to 616,194.95, 850,203.30 and 357,918.43 is: 493,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,194.95 : 850,203.30 = 357,918.43 : x
  2. Step 2: Convert to fraction form
    616,194.95/850,203.30 = 357,918.43/x
  3. Step 3: Cross multiply
    616,194.95x = 850,203.30 × 357,918.43
  4. Step 4: Simplify right side
    616,194.95x = 304,303,429,114.35
  5. Step 5: Solve for x
    x = 304,303,429,114.35/616,194.95
  6. Step 6: Final answer
    x = 493,842.78

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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.