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Finding the Fourth Proportional to 216,709.08, 298,938.18 and 126,054.84

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Solution

The fourth proportional to 216,709.08, 298,938.18 and 126,054.84 is: 173,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,709.08 : 298,938.18 = 126,054.84 : x
  2. Step 2: Convert to fraction form
    216,709.08/298,938.18 = 126,054.84/x
  3. Step 3: Cross multiply
    216,709.08x = 298,938.18 × 126,054.84
  4. Step 4: Simplify right side
    216,709.08x = 37,682,604,449.79
  5. Step 5: Solve for x
    x = 37,682,604,449.79/216,709.08
  6. Step 6: Final answer
    x = 173,885.67

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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.