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Finding the Fourth Proportional to 221,889.16, 333,047.58 and 209,901.16

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Solution

The fourth proportional to 221,889.16, 333,047.58 and 209,901.16 is: 315,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,889.16 : 333,047.58 = 209,901.16 : x
  2. Step 2: Convert to fraction form
    221,889.16/333,047.58 = 209,901.16/x
  3. Step 3: Cross multiply
    221,889.16x = 333,047.58 × 209,901.16
  4. Step 4: Simplify right side
    221,889.16x = 69,907,073,377.19
  5. Step 5: Solve for x
    x = 69,907,073,377.19/221,889.16
  6. Step 6: Final answer
    x = 315,054.03

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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.