Home / 379,783.10-524,165.13-218,731.39

Finding the Fourth Proportional to 379,783.10, 524,165.13 and 218,731.39

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Solution

The fourth proportional to 379,783.10, 524,165.13 and 218,731.39 is: 301,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,783.10 : 524,165.13 = 218,731.39 : x
  2. Step 2: Convert to fraction form
    379,783.10/524,165.13 = 218,731.39/x
  3. Step 3: Cross multiply
    379,783.10x = 524,165.13 × 218,731.39
  4. Step 4: Simplify right side
    379,783.10x = 114,651,366,380.77
  5. Step 5: Solve for x
    x = 114,651,366,380.77/379,783.10
  6. Step 6: Final answer
    x = 301,886.44

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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.