Home / 218,211.63-301,127.33-126,334.79

Finding the Fourth Proportional to 218,211.63, 301,127.33 and 126,334.79

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Solution

The fourth proportional to 218,211.63, 301,127.33 and 126,334.79 is: 174,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,211.63 : 301,127.33 = 126,334.79 : x
  2. Step 2: Convert to fraction form
    218,211.63/301,127.33 = 126,334.79/x
  3. Step 3: Cross multiply
    218,211.63x = 301,127.33 × 126,334.79
  4. Step 4: Simplify right side
    218,211.63x = 38,042,855,861.50
  5. Step 5: Solve for x
    x = 38,042,855,861.50/218,211.63
  6. Step 6: Final answer
    x = 174,339.27

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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.