Home / 305,554.27-421,742.40-208,797.29

Finding the Fourth Proportional to 305,554.27, 421,742.40 and 208,797.29

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Solution

The fourth proportional to 305,554.27, 421,742.40 and 208,797.29 is: 288,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,554.27 : 421,742.40 = 208,797.29 : x
  2. Step 2: Convert to fraction form
    305,554.27/421,742.40 = 208,797.29/x
  3. Step 3: Cross multiply
    305,554.27x = 421,742.40 × 208,797.29
  4. Step 4: Simplify right side
    305,554.27x = 88,058,667,045.40
  5. Step 5: Solve for x
    x = 88,058,667,045.40/305,554.27
  6. Step 6: Final answer
    x = 288,193.22

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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.