Home / 209,912.22-314,867.16-52,140.60

Finding the Fourth Proportional to 209,912.22, 314,867.16 and 52,140.60

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Solution

The fourth proportional to 209,912.22, 314,867.16 and 52,140.60 is: 78,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,912.22 : 314,867.16 = 52,140.60 : x
  2. Step 2: Convert to fraction form
    209,912.22/314,867.16 = 52,140.60/x
  3. Step 3: Cross multiply
    209,912.22x = 314,867.16 × 52,140.60
  4. Step 4: Simplify right side
    209,912.22x = 16,417,362,642.70
  5. Step 5: Solve for x
    x = 16,417,362,642.70/209,912.22
  6. Step 6: Final answer
    x = 78,210.61

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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.