Home / 547,631.40-821,301.30-168,551.40

Finding the Fourth Proportional to 547,631.40, 821,301.30 and 168,551.40

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Solution

The fourth proportional to 547,631.40, 821,301.30 and 168,551.40 is: 252,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,631.40 : 821,301.30 = 168,551.40 : x
  2. Step 2: Convert to fraction form
    547,631.40/821,301.30 = 168,551.40/x
  3. Step 3: Cross multiply
    547,631.40x = 821,301.30 × 168,551.40
  4. Step 4: Simplify right side
    547,631.40x = 138,431,483,936.82
  5. Step 5: Solve for x
    x = 138,431,483,936.82/547,631.40
  6. Step 6: Final answer
    x = 252,782.23

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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.