Home / 209,968.20-314,952.30-76,804.20

Finding the Fourth Proportional to 209,968.20, 314,952.30 and 76,804.20

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Solution

The fourth proportional to 209,968.20, 314,952.30 and 76,804.20 is: 115,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968.20 : 314,952.30 = 76,804.20 : x
  2. Step 2: Convert to fraction form
    209,968.20/314,952.30 = 76,804.20/x
  3. Step 3: Cross multiply
    209,968.20x = 314,952.30 × 76,804.20
  4. Step 4: Simplify right side
    209,968.20x = 24,189,659,439.66
  5. Step 5: Solve for x
    x = 24,189,659,439.66/209,968.20
  6. Step 6: Final answer
    x = 115,206.30

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1.5x scale

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.