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Finding the Fourth Proportional to 380,937.88, 525,699.06 and 219,826.36

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Solution

The fourth proportional to 380,937.88, 525,699.06 and 219,826.36 is: 303,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,937.88 : 525,699.06 = 219,826.36 : x
  2. Step 2: Convert to fraction form
    380,937.88/525,699.06 = 219,826.36/x
  3. Step 3: Cross multiply
    380,937.88x = 525,699.06 × 219,826.36
  4. Step 4: Simplify right side
    380,937.88x = 115,562,510,815.22
  5. Step 5: Solve for x
    x = 115,562,510,815.22/380,937.88
  6. Step 6: Final answer
    x = 303,363.14

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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.