Home / 219,407.64-302,794.38-123,918.36

Finding the Fourth Proportional to 219,407.64, 302,794.38 and 123,918.36

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Solution

The fourth proportional to 219,407.64, 302,794.38 and 123,918.36 is: 171,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,407.64 : 302,794.38 = 123,918.36 : x
  2. Step 2: Convert to fraction form
    219,407.64/302,794.38 = 123,918.36/x
  3. Step 3: Cross multiply
    219,407.64x = 302,794.38 × 123,918.36
  4. Step 4: Simplify right side
    219,407.64x = 37,521,782,986.82
  5. Step 5: Solve for x
    x = 37,521,782,986.82/219,407.64
  6. Step 6: Final answer
    x = 171,014.02

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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.