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Finding the Fourth Proportional to 395,574.12, 545,881.02 and 232,228.05

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Solution

The fourth proportional to 395,574.12, 545,881.02 and 232,228.05 is: 320,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,574.12 : 545,881.02 = 232,228.05 : x
  2. Step 2: Convert to fraction form
    395,574.12/545,881.02 = 232,228.05/x
  3. Step 3: Cross multiply
    395,574.12x = 545,881.02 × 232,228.05
  4. Step 4: Simplify right side
    395,574.12x = 126,768,884,806.61
  5. Step 5: Solve for x
    x = 126,768,884,806.61/395,574.12
  6. Step 6: Final answer
    x = 320,468.10

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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.