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Finding the Fourth Proportional to 381,509.24, 526,360.96 and 220,343

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Solution

The fourth proportional to 381,509.24, 526,360.96 and 220,343 is: 304,003.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,509.24 : 526,360.96 = 220,343 : x
  2. Step 2: Convert to fraction form
    381,509.24/526,360.96 = 220,343/x
  3. Step 3: Cross multiply
    381,509.24x = 526,360.96 × 220,343
  4. Step 4: Simplify right side
    381,509.24x = 115,979,953,009.28
  5. Step 5: Solve for x
    x = 115,979,953,009.28/381,509.24
  6. Step 6: Final answer
    x = 304,003.00

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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.