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Finding the Fourth Proportional to 253,895.70, 350,380.45 and 139,166.70

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Solution

The fourth proportional to 253,895.70, 350,380.45 and 139,166.70 is: 192,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,895.70 : 350,380.45 = 139,166.70 : x
  2. Step 2: Convert to fraction form
    253,895.70/350,380.45 = 139,166.70/x
  3. Step 3: Cross multiply
    253,895.70x = 350,380.45 × 139,166.70
  4. Step 4: Simplify right side
    253,895.70x = 48,761,290,971.02
  5. Step 5: Solve for x
    x = 48,761,290,971.02/253,895.70
  6. Step 6: Final answer
    x = 192,052.45

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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.