Home / 296,258.36-408,411.26-211,227.80

Finding the Fourth Proportional to 296,258.36, 408,411.26 and 211,227.80

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Solution

The fourth proportional to 296,258.36, 408,411.26 and 211,227.80 is: 291,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,258.36 : 408,411.26 = 211,227.80 : x
  2. Step 2: Convert to fraction form
    296,258.36/408,411.26 = 211,227.80/x
  3. Step 3: Cross multiply
    296,258.36x = 408,411.26 × 211,227.80
  4. Step 4: Simplify right side
    296,258.36x = 86,267,811,945.03
  5. Step 5: Solve for x
    x = 86,267,811,945.03/296,258.36
  6. Step 6: Final answer
    x = 291,191.15

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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.