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Finding the Fourth Proportional to 279,416.88, 384,860.73 and 214,762.48

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Solution

The fourth proportional to 279,416.88, 384,860.73 and 214,762.48 is: 295,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,416.88 : 384,860.73 = 214,762.48 : x
  2. Step 2: Convert to fraction form
    279,416.88/384,860.73 = 214,762.48/x
  3. Step 3: Cross multiply
    279,416.88x = 384,860.73 × 214,762.48
  4. Step 4: Simplify right side
    279,416.88x = 82,653,644,829.41
  5. Step 5: Solve for x
    x = 82,653,644,829.41/279,416.88
  6. Step 6: Final answer
    x = 295,807.63

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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.