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Finding the Fourth Proportional to 254,612.56, 351,366.32 and 139,900.48

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Solution

The fourth proportional to 254,612.56, 351,366.32 and 139,900.48 is: 193,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,612.56 : 351,366.32 = 139,900.48 : x
  2. Step 2: Convert to fraction form
    254,612.56/351,366.32 = 139,900.48/x
  3. Step 3: Cross multiply
    254,612.56x = 351,366.32 × 139,900.48
  4. Step 4: Simplify right side
    254,612.56x = 49,156,316,823.83
  5. Step 5: Solve for x
    x = 49,156,316,823.83/254,612.56
  6. Step 6: Final answer
    x = 193,063.20

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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.