Home / 219,198.60-302,463.72-122,390.64

Finding the Fourth Proportional to 219,198.60, 302,463.72 and 122,390.64

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Solution

The fourth proportional to 219,198.60, 302,463.72 and 122,390.64 is: 168,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,198.60 : 302,463.72 = 122,390.64 : x
  2. Step 2: Convert to fraction form
    219,198.60/302,463.72 = 122,390.64/x
  3. Step 3: Cross multiply
    219,198.60x = 302,463.72 × 122,390.64
  4. Step 4: Simplify right side
    219,198.60x = 37,018,728,267.58
  5. Step 5: Solve for x
    x = 37,018,728,267.58/219,198.60
  6. Step 6: Final answer
    x = 168,882.14

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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.