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Finding the Fourth Proportional to 438,662.76, 657,860.16 and 185,938.50

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Solution

The fourth proportional to 438,662.76, 657,860.16 and 185,938.50 is: 278,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,662.76 : 657,860.16 = 185,938.50 : x
  2. Step 2: Convert to fraction form
    438,662.76/657,860.16 = 185,938.50/x
  3. Step 3: Cross multiply
    438,662.76x = 657,860.16 × 185,938.50
  4. Step 4: Simplify right side
    438,662.76x = 122,321,531,360.16
  5. Step 5: Solve for x
    x = 122,321,531,360.16/438,662.76
  6. Step 6: Final answer
    x = 278,850.96

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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.