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Finding the Fourth Proportional to 253,980.23, 350,493.68 and 139,260.67

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Solution

The fourth proportional to 253,980.23, 350,493.68 and 139,260.67 is: 192,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,980.23 : 350,493.68 = 139,260.67 : x
  2. Step 2: Convert to fraction form
    253,980.23/350,493.68 = 139,260.67/x
  3. Step 3: Cross multiply
    253,980.23x = 350,493.68 × 139,260.67
  4. Step 4: Simplify right side
    253,980.23x = 48,809,984,179.48
  5. Step 5: Solve for x
    x = 48,809,984,179.48/253,980.23
  6. Step 6: Final answer
    x = 192,180.25

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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.