Home / 281,561.08-388,554.36-154,241.20

Finding the Fourth Proportional to 281,561.08, 388,554.36 and 154,241.20

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Solution

The fourth proportional to 281,561.08, 388,554.36 and 154,241.20 is: 212,852.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,561.08 : 388,554.36 = 154,241.20 : x
  2. Step 2: Convert to fraction form
    281,561.08/388,554.36 = 154,241.20/x
  3. Step 3: Cross multiply
    281,561.08x = 388,554.36 × 154,241.20
  4. Step 4: Simplify right side
    281,561.08x = 59,931,090,751.63
  5. Step 5: Solve for x
    x = 59,931,090,751.63/281,561.08
  6. Step 6: Final answer
    x = 212,852.89

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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.