Home / 448,015.11-671,789.34-211,294.23

Finding the Fourth Proportional to 448,015.11, 671,789.34 and 211,294.23

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Solution

The fourth proportional to 448,015.11, 671,789.34 and 211,294.23 is: 316,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,015.11 : 671,789.34 = 211,294.23 : x
  2. Step 2: Convert to fraction form
    448,015.11/671,789.34 = 211,294.23/x
  3. Step 3: Cross multiply
    448,015.11x = 671,789.34 × 211,294.23
  4. Step 4: Simplify right side
    448,015.11x = 141,945,211,317.51
  5. Step 5: Solve for x
    x = 141,945,211,317.51/448,015.11
  6. Step 6: Final answer
    x = 316,831.30

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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.