Home / 219,243.04-302,558.24-138,586.56

Finding the Fourth Proportional to 219,243.04, 302,558.24 and 138,586.56

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Solution

The fourth proportional to 219,243.04, 302,558.24 and 138,586.56 is: 191,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,243.04 : 302,558.24 = 138,586.56 : x
  2. Step 2: Convert to fraction form
    219,243.04/302,558.24 = 138,586.56/x
  3. Step 3: Cross multiply
    219,243.04x = 302,558.24 × 138,586.56
  4. Step 4: Simplify right side
    219,243.04x = 41,930,505,681.25
  5. Step 5: Solve for x
    x = 41,930,505,681.25/219,243.04
  6. Step 6: Final answer
    x = 191,251.25

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1.5x scale

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.