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Finding the Fourth Proportional to 242,450.91, 334,552.84 and 139,079.77

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Solution

The fourth proportional to 242,450.91, 334,552.84 and 139,079.77 is: 191,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,450.91 : 334,552.84 = 139,079.77 : x
  2. Step 2: Convert to fraction form
    242,450.91/334,552.84 = 139,079.77/x
  3. Step 3: Cross multiply
    242,450.91x = 334,552.84 × 139,079.77
  4. Step 4: Simplify right side
    242,450.91x = 46,529,532,040.05
  5. Step 5: Solve for x
    x = 46,529,532,040.05/242,450.91
  6. Step 6: Final answer
    x = 191,913.21

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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.