Home / 379,783.48-524,165.64-218,731.77

Finding the Fourth Proportional to 379,783.48, 524,165.64 and 218,731.77

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Solution

The fourth proportional to 379,783.48, 524,165.64 and 218,731.77 is: 301,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,783.48 : 524,165.64 = 218,731.77 : x
  2. Step 2: Convert to fraction form
    379,783.48/524,165.64 = 218,731.77/x
  3. Step 3: Cross multiply
    379,783.48x = 524,165.64 × 218,731.77
  4. Step 4: Simplify right side
    379,783.48x = 114,651,675,589.56
  5. Step 5: Solve for x
    x = 114,651,675,589.56/379,783.48
  6. Step 6: Final answer
    x = 301,886.95

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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.