Home / 353,089.40-529,634.10-203,790.20

Finding the Fourth Proportional to 353,089.40, 529,634.10 and 203,790.20

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Solution

The fourth proportional to 353,089.40, 529,634.10 and 203,790.20 is: 305,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,089.40 : 529,634.10 = 203,790.20 : x
  2. Step 2: Convert to fraction form
    353,089.40/529,634.10 = 203,790.20/x
  3. Step 3: Cross multiply
    353,089.40x = 529,634.10 × 203,790.20
  4. Step 4: Simplify right side
    353,089.40x = 107,934,239,165.82
  5. Step 5: Solve for x
    x = 107,934,239,165.82/353,089.40
  6. Step 6: Final answer
    x = 305,685.30

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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.