Home / 221,609.32-307,885.47-218,952.12

Finding the Fourth Proportional to 221,609.32, 307,885.47 and 218,952.12

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Solution

The fourth proportional to 221,609.32, 307,885.47 and 218,952.12 is: 304,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,609.32 : 307,885.47 = 218,952.12 : x
  2. Step 2: Convert to fraction form
    221,609.32/307,885.47 = 218,952.12/x
  3. Step 3: Cross multiply
    221,609.32x = 307,885.47 × 218,952.12
  4. Step 4: Simplify right side
    221,609.32x = 67,412,175,834.93
  5. Step 5: Solve for x
    x = 67,412,175,834.93/221,609.32
  6. Step 6: Final answer
    x = 304,193.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.