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Finding the Fourth Proportional to 219,888.65, 303,289.90 and 201,797.79

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Solution

The fourth proportional to 219,888.65, 303,289.90 and 201,797.79 is: 278,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,888.65 : 303,289.90 = 201,797.79 : x
  2. Step 2: Convert to fraction form
    219,888.65/303,289.90 = 201,797.79/x
  3. Step 3: Cross multiply
    219,888.65x = 303,289.90 × 201,797.79
  4. Step 4: Simplify right side
    219,888.65x = 61,203,231,549.32
  5. Step 5: Solve for x
    x = 61,203,231,549.32/219,888.65
  6. Step 6: Final answer
    x = 278,337.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.