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Finding the Fourth Proportional to 395,332.52, 545,548.77 and 220,904.15

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Solution

The fourth proportional to 395,332.52, 545,548.77 and 220,904.15 is: 304,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,332.52 : 545,548.77 = 220,904.15 : x
  2. Step 2: Convert to fraction form
    395,332.52/545,548.77 = 220,904.15/x
  3. Step 3: Cross multiply
    395,332.52x = 545,548.77 × 220,904.15
  4. Step 4: Simplify right side
    395,332.52x = 120,513,984,592.65
  5. Step 5: Solve for x
    x = 120,513,984,592.65/395,332.52
  6. Step 6: Final answer
    x = 304,842.08

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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.