Home / 221,611.17-307,888.03-218,953.96

Finding the Fourth Proportional to 221,611.17, 307,888.03 and 218,953.96

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Solution

The fourth proportional to 221,611.17, 307,888.03 and 218,953.96 is: 304,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,611.17 : 307,888.03 = 218,953.96 : x
  2. Step 2: Convert to fraction form
    221,611.17/307,888.03 = 218,953.96/x
  3. Step 3: Cross multiply
    221,611.17x = 307,888.03 × 218,953.96
  4. Step 4: Simplify right side
    221,611.17x = 67,413,303,405.10
  5. Step 5: Solve for x
    x = 67,413,303,405.10/221,611.17
  6. Step 6: Final answer
    x = 304,196.32

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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.