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Finding the Fourth Proportional to 476,481.46, 714,669.90 and 139,525.47

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Solution

The fourth proportional to 476,481.46, 714,669.90 and 139,525.47 is: 209,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,481.46 : 714,669.90 = 139,525.47 : x
  2. Step 2: Convert to fraction form
    476,481.46/714,669.90 = 139,525.47/x
  3. Step 3: Cross multiply
    476,481.46x = 714,669.90 × 139,525.47
  4. Step 4: Simplify right side
    476,481.46x = 99,714,653,692.35
  5. Step 5: Solve for x
    x = 99,714,653,692.35/476,481.46
  6. Step 6: Final answer
    x = 209,272.89

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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.