Home / 209,427.18-314,141.64-65,334.78

Finding the Fourth Proportional to 209,427.18, 314,141.64 and 65,334.78

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Solution

The fourth proportional to 209,427.18, 314,141.64 and 65,334.78 is: 98,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,427.18 : 314,141.64 = 65,334.78 : x
  2. Step 2: Convert to fraction form
    209,427.18/314,141.64 = 65,334.78/x
  3. Step 3: Cross multiply
    209,427.18x = 314,141.64 × 65,334.78
  4. Step 4: Simplify right side
    209,427.18x = 20,524,374,938.24
  5. Step 5: Solve for x
    x = 20,524,374,938.24/209,427.18
  6. Step 6: Final answer
    x = 98,002.44

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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.