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Finding the Fourth Proportional to 281,046, 421,537.95 and 70,684.02

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Solution

The fourth proportional to 281,046, 421,537.95 and 70,684.02 is: 106,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,046 : 421,537.95 = 70,684.02 : x
  2. Step 2: Convert to fraction form
    281,046/421,537.95 = 70,684.02/x
  3. Step 3: Cross multiply
    281,046x = 421,537.95 × 70,684.02
  4. Step 4: Simplify right side
    281,046x = 29,795,996,888.56
  5. Step 5: Solve for x
    x = 29,795,996,888.56/281,046
  6. Step 6: Final answer
    x = 106,018.22

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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.