Home / 345,559.18-518,346.96-92,839.98

Finding the Fourth Proportional to 345,559.18, 518,346.96 and 92,839.98

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Solution

The fourth proportional to 345,559.18, 518,346.96 and 92,839.98 is: 139,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,559.18 : 518,346.96 = 92,839.98 : x
  2. Step 2: Convert to fraction form
    345,559.18/518,346.96 = 92,839.98/x
  3. Step 3: Cross multiply
    345,559.18x = 518,346.96 × 92,839.98
  4. Step 4: Simplify right side
    345,559.18x = 48,123,321,399.46
  5. Step 5: Solve for x
    x = 48,123,321,399.46/345,559.18
  6. Step 6: Final answer
    x = 139,262.17

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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.