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Finding the Fourth Proportional to 254,301.45, 350,940.45 and 139,590.83

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Solution

The fourth proportional to 254,301.45, 350,940.45 and 139,590.83 is: 192,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,301.45 : 350,940.45 = 139,590.83 : x
  2. Step 2: Convert to fraction form
    254,301.45/350,940.45 = 139,590.83/x
  3. Step 3: Cross multiply
    254,301.45x = 350,940.45 × 139,590.83
  4. Step 4: Simplify right side
    254,301.45x = 48,988,066,941.37
  5. Step 5: Solve for x
    x = 48,988,066,941.37/254,301.45
  6. Step 6: Final answer
    x = 192,637.78

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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.