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Finding the Fourth Proportional to 375,185.63, 563,081.90 and 290,745.56

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Solution

The fourth proportional to 375,185.63, 563,081.90 and 290,745.56 is: 436,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,185.63 : 563,081.90 = 290,745.56 : x
  2. Step 2: Convert to fraction form
    375,185.63/563,081.90 = 290,745.56/x
  3. Step 3: Cross multiply
    375,185.63x = 563,081.90 × 290,745.56
  4. Step 4: Simplify right side
    375,185.63x = 163,713,562,295.34
  5. Step 5: Solve for x
    x = 163,713,562,295.34/375,185.63
  6. Step 6: Final answer
    x = 436,353.50

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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.