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Finding the Fourth Proportional to 235,320.88, 324,770.44 and 139,827.64

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Solution

The fourth proportional to 235,320.88, 324,770.44 and 139,827.64 is: 192,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,320.88 : 324,770.44 = 139,827.64 : x
  2. Step 2: Convert to fraction form
    235,320.88/324,770.44 = 139,827.64/x
  3. Step 3: Cross multiply
    235,320.88x = 324,770.44 × 139,827.64
  4. Step 4: Simplify right side
    235,320.88x = 45,411,884,166.96
  5. Step 5: Solve for x
    x = 45,411,884,166.96/235,320.88
  6. Step 6: Final answer
    x = 192,978.56

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1.5x scale

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.