Home / 402,195.21-555,033.93-220,911.34

Finding the Fourth Proportional to 402,195.21, 555,033.93 and 220,911.34

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Solution

The fourth proportional to 402,195.21, 555,033.93 and 220,911.34 is: 304,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,195.21 : 555,033.93 = 220,911.34 : x
  2. Step 2: Convert to fraction form
    402,195.21/555,033.93 = 220,911.34/x
  3. Step 3: Cross multiply
    402,195.21x = 555,033.93 × 220,911.34
  4. Step 4: Simplify right side
    402,195.21x = 122,613,289,221.77
  5. Step 5: Solve for x
    x = 122,613,289,221.77/402,195.21
  6. Step 6: Final answer
    x = 304,860.14

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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.