Home / 201,638.10-302,554.35-142,346.10

Finding the Fourth Proportional to 201,638.10, 302,554.35 and 142,346.10

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Solution

The fourth proportional to 201,638.10, 302,554.35 and 142,346.10 is: 213,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,638.10 : 302,554.35 = 142,346.10 : x
  2. Step 2: Convert to fraction form
    201,638.10/302,554.35 = 142,346.10/x
  3. Step 3: Cross multiply
    201,638.10x = 302,554.35 × 142,346.10
  4. Step 4: Simplify right side
    201,638.10x = 43,067,431,760.54
  5. Step 5: Solve for x
    x = 43,067,431,760.54/201,638.10
  6. Step 6: Final answer
    x = 213,587.77

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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.