Home / 281,824.88-388,918.35-154,501.38

Finding the Fourth Proportional to 281,824.88, 388,918.35 and 154,501.38

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Solution

The fourth proportional to 281,824.88, 388,918.35 and 154,501.38 is: 213,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,824.88 : 388,918.35 = 154,501.38 : x
  2. Step 2: Convert to fraction form
    281,824.88/388,918.35 = 154,501.38/x
  3. Step 3: Cross multiply
    281,824.88x = 388,918.35 × 154,501.38
  4. Step 4: Simplify right side
    281,824.88x = 60,088,421,782.32
  5. Step 5: Solve for x
    x = 60,088,421,782.32/281,824.88
  6. Step 6: Final answer
    x = 213,211.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.