Home / 209,341.28-314,145.12-76,208.60

Finding the Fourth Proportional to 209,341.28, 314,145.12 and 76,208.60

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Solution

The fourth proportional to 209,341.28, 314,145.12 and 76,208.60 is: 114,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,341.28 : 314,145.12 = 76,208.60 : x
  2. Step 2: Convert to fraction form
    209,341.28/314,145.12 = 76,208.60/x
  3. Step 3: Cross multiply
    209,341.28x = 314,145.12 × 76,208.60
  4. Step 4: Simplify right side
    209,341.28x = 23,940,559,792.03
  5. Step 5: Solve for x
    x = 23,940,559,792.03/209,341.28
  6. Step 6: Final answer
    x = 114,361.39

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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.