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Finding the Fourth Proportional to 395,537.55, 545,830.16 and 223,463.58

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Solution

The fourth proportional to 395,537.55, 545,830.16 and 223,463.58 is: 308,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,537.55 : 545,830.16 = 223,463.58 : x
  2. Step 2: Convert to fraction form
    395,537.55/545,830.16 = 223,463.58/x
  3. Step 3: Cross multiply
    395,537.55x = 545,830.16 × 223,463.58
  4. Step 4: Simplify right side
    395,537.55x = 121,973,160,508.26
  5. Step 5: Solve for x
    x = 121,973,160,508.26/395,537.55
  6. Step 6: Final answer
    x = 308,373.15

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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.