Home / 219,013.74-302,238.54-123,520.14

Finding the Fourth Proportional to 219,013.74, 302,238.54 and 123,520.14

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Solution

The fourth proportional to 219,013.74, 302,238.54 and 123,520.14 is: 170,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,013.74 : 302,238.54 = 123,520.14 : x
  2. Step 2: Convert to fraction form
    219,013.74/302,238.54 = 123,520.14/x
  3. Step 3: Cross multiply
    219,013.74x = 302,238.54 × 123,520.14
  4. Step 4: Simplify right side
    219,013.74x = 37,332,546,774.20
  5. Step 5: Solve for x
    x = 37,332,546,774.20/219,013.74
  6. Step 6: Final answer
    x = 170,457.56

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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.