Home / 281,885.07-421,998.17-188,158.35

Finding the Fourth Proportional to 281,885.07, 421,998.17 and 188,158.35

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Solution

The fourth proportional to 281,885.07, 421,998.17 and 188,158.35 is: 281,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,885.07 : 421,998.17 = 188,158.35 : x
  2. Step 2: Convert to fraction form
    281,885.07/421,998.17 = 188,158.35/x
  3. Step 3: Cross multiply
    281,885.07x = 421,998.17 × 188,158.35
  4. Step 4: Simplify right side
    281,885.07x = 79,402,478,429.43
  5. Step 5: Solve for x
    x = 79,402,478,429.43/281,885.07
  6. Step 6: Final answer
    x = 281,683.87

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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.