Home / 201,622.10-302,530.35-142,330.10

Finding the Fourth Proportional to 201,622.10, 302,530.35 and 142,330.10

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Solution

The fourth proportional to 201,622.10, 302,530.35 and 142,330.10 is: 213,563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,622.10 : 302,530.35 = 142,330.10 : x
  2. Step 2: Convert to fraction form
    201,622.10/302,530.35 = 142,330.10/x
  3. Step 3: Cross multiply
    201,622.10x = 302,530.35 × 142,330.10
  4. Step 4: Simplify right side
    201,622.10x = 43,059,174,968.54
  5. Step 5: Solve for x
    x = 43,059,174,968.54/201,622.10
  6. Step 6: Final answer
    x = 213,563.77

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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.