Home / 448,103.40-672,154.50-208,086.06

Finding the Fourth Proportional to 448,103.40, 672,154.50 and 208,086.06

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Solution

The fourth proportional to 448,103.40, 672,154.50 and 208,086.06 is: 312,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,103.40 : 672,154.50 = 208,086.06 : x
  2. Step 2: Convert to fraction form
    448,103.40/672,154.50 = 208,086.06/x
  3. Step 3: Cross multiply
    448,103.40x = 672,154.50 × 208,086.06
  4. Step 4: Simplify right side
    448,103.40x = 139,865,981,616.27
  5. Step 5: Solve for x
    x = 139,865,981,616.27/448,103.40
  6. Step 6: Final answer
    x = 312,128.81

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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.