Home / 345,559.18-518,303.72-92,806.82

Finding the Fourth Proportional to 345,559.18, 518,303.72 and 92,806.82

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Solution

The fourth proportional to 345,559.18, 518,303.72 and 92,806.82 is: 139,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,559.18 : 518,303.72 = 92,806.82 : x
  2. Step 2: Convert to fraction form
    345,559.18/518,303.72 = 92,806.82/x
  3. Step 3: Cross multiply
    345,559.18x = 518,303.72 × 92,806.82
  4. Step 4: Simplify right side
    345,559.18x = 48,102,120,047.37
  5. Step 5: Solve for x
    x = 48,102,120,047.37/345,559.18
  6. Step 6: Final answer
    x = 139,200.82

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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.