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Finding the Fourth Proportional to 242,826.36, 363,552.66 and 128,714.16

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Solution

The fourth proportional to 242,826.36, 363,552.66 and 128,714.16 is: 192,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,826.36 : 363,552.66 = 128,714.16 : x
  2. Step 2: Convert to fraction form
    242,826.36/363,552.66 = 128,714.16/x
  3. Step 3: Cross multiply
    242,826.36x = 363,552.66 × 128,714.16
  4. Step 4: Simplify right side
    242,826.36x = 46,794,375,247.67
  5. Step 5: Solve for x
    x = 46,794,375,247.67/242,826.36
  6. Step 6: Final answer
    x = 192,707.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.