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Finding the Fourth Proportional to 254,205.63, 350,810.28 and 139,489.20

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Solution

The fourth proportional to 254,205.63, 350,810.28 and 139,489.20 is: 192,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,205.63 : 350,810.28 = 139,489.20 : x
  2. Step 2: Convert to fraction form
    254,205.63/350,810.28 = 139,489.20/x
  3. Step 3: Cross multiply
    254,205.63x = 350,810.28 × 139,489.20
  4. Step 4: Simplify right side
    254,205.63x = 48,934,245,308.98
  5. Step 5: Solve for x
    x = 48,934,245,308.98/254,205.63
  6. Step 6: Final answer
    x = 192,498.67

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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.