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Finding the Fourth Proportional to 253,951.54, 350,457.05 and 139,240.64

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Solution

The fourth proportional to 253,951.54, 350,457.05 and 139,240.64 is: 192,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,951.54 : 350,457.05 = 139,240.64 : x
  2. Step 2: Convert to fraction form
    253,951.54/350,457.05 = 139,240.64/x
  3. Step 3: Cross multiply
    253,951.54x = 350,457.05 × 139,240.64
  4. Step 4: Simplify right side
    253,951.54x = 48,797,865,158.76
  5. Step 5: Solve for x
    x = 48,797,865,158.76/253,951.54
  6. Step 6: Final answer
    x = 192,154.24

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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.