Home / 209,456.12-314,232.78-69,206.24

Finding the Fourth Proportional to 209,456.12, 314,232.78 and 69,206.24

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Solution

The fourth proportional to 209,456.12, 314,232.78 and 69,206.24 is: 103,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,456.12 : 314,232.78 = 69,206.24 : x
  2. Step 2: Convert to fraction form
    209,456.12/314,232.78 = 69,206.24/x
  3. Step 3: Cross multiply
    209,456.12x = 314,232.78 × 69,206.24
  4. Step 4: Simplify right side
    209,456.12x = 21,746,870,233.65
  5. Step 5: Solve for x
    x = 21,746,870,233.65/209,456.12
  6. Step 6: Final answer
    x = 103,825.42

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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.