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Finding the Fourth Proportional to 254,081.49, 350,630.06 and 139,357.79

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Solution

The fourth proportional to 254,081.49, 350,630.06 and 139,357.79 is: 192,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,081.49 : 350,630.06 = 139,357.79 : x
  2. Step 2: Convert to fraction form
    254,081.49/350,630.06 = 139,357.79/x
  3. Step 3: Cross multiply
    254,081.49x = 350,630.06 × 139,357.79
  4. Step 4: Simplify right side
    254,081.49x = 48,863,030,269.17
  5. Step 5: Solve for x
    x = 48,863,030,269.17/254,081.49
  6. Step 6: Final answer
    x = 192,312.44

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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.