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Finding the Fourth Proportional to 395,527.28, 545,925.32 and 225,859.84

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Solution

The fourth proportional to 395,527.28, 545,925.32 and 225,859.84 is: 311,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,527.28 : 545,925.32 = 225,859.84 : x
  2. Step 2: Convert to fraction form
    395,527.28/545,925.32 = 225,859.84/x
  3. Step 3: Cross multiply
    395,527.28x = 545,925.32 × 225,859.84
  4. Step 4: Simplify right side
    395,527.28x = 123,302,605,427.15
  5. Step 5: Solve for x
    x = 123,302,605,427.15/395,527.28
  6. Step 6: Final answer
    x = 311,742.35

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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.