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Finding the Fourth Proportional to 355,341.80, 533,304.30 and 343,677.80

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Solution

The fourth proportional to 355,341.80, 533,304.30 and 343,677.80 is: 515,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,341.80 : 533,304.30 = 343,677.80 : x
  2. Step 2: Convert to fraction form
    355,341.80/533,304.30 = 343,677.80/x
  3. Step 3: Cross multiply
    355,341.80x = 533,304.30 × 343,677.80
  4. Step 4: Simplify right side
    355,341.80x = 183,284,848,554.54
  5. Step 5: Solve for x
    x = 183,284,848,554.54/355,341.80
  6. Step 6: Final answer
    x = 515,798.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.