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Finding the Fourth Proportional to 254,336.96, 350,972.48 and 139,612.80

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Solution

The fourth proportional to 254,336.96, 350,972.48 and 139,612.80 is: 192,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,336.96 : 350,972.48 = 139,612.80 : x
  2. Step 2: Convert to fraction form
    254,336.96/350,972.48 = 139,612.80/x
  3. Step 3: Cross multiply
    254,336.96x = 350,972.48 × 139,612.80
  4. Step 4: Simplify right side
    254,336.96x = 49,000,250,655.74
  5. Step 5: Solve for x
    x = 49,000,250,655.74/254,336.96
  6. Step 6: Final answer
    x = 192,658.79

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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.