Home / 219,020.87-302,248.22-122,223.69

Finding the Fourth Proportional to 219,020.87, 302,248.22 and 122,223.69

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Solution

The fourth proportional to 219,020.87, 302,248.22 and 122,223.69 is: 168,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,020.87 : 302,248.22 = 122,223.69 : x
  2. Step 2: Convert to fraction form
    219,020.87/302,248.22 = 122,223.69/x
  3. Step 3: Cross multiply
    219,020.87x = 302,248.22 × 122,223.69
  4. Step 4: Simplify right side
    219,020.87x = 36,941,892,133.21
  5. Step 5: Solve for x
    x = 36,941,892,133.21/219,020.87
  6. Step 6: Final answer
    x = 168,668.37

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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.