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Finding the Fourth Proportional to 246,678.86, 370,018.36 and 86,872.79

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Solution

The fourth proportional to 246,678.86, 370,018.36 and 86,872.79 is: 130,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,678.86 : 370,018.36 = 86,872.79 : x
  2. Step 2: Convert to fraction form
    246,678.86/370,018.36 = 86,872.79/x
  3. Step 3: Cross multiply
    246,678.86x = 370,018.36 × 86,872.79
  4. Step 4: Simplify right side
    246,678.86x = 32,144,527,284.42
  5. Step 5: Solve for x
    x = 32,144,527,284.42/246,678.86
  6. Step 6: Final answer
    x = 130,309.21

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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.