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Finding the Fourth Proportional to 452,346.82, 677,486.80 and 215,855.58

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Solution

The fourth proportional to 452,346.82, 677,486.80 and 215,855.58 is: 323,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,346.82 : 677,486.80 = 215,855.58 : x
  2. Step 2: Convert to fraction form
    452,346.82/677,486.80 = 215,855.58/x
  3. Step 3: Cross multiply
    452,346.82x = 677,486.80 × 215,855.58
  4. Step 4: Simplify right side
    452,346.82x = 146,239,306,156.34
  5. Step 5: Solve for x
    x = 146,239,306,156.34/452,346.82
  6. Step 6: Final answer
    x = 323,290.23

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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.