Home / 403,933.20-605,899.80-235,643.55

Finding the Fourth Proportional to 403,933.20, 605,899.80 and 235,643.55

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Solution

The fourth proportional to 403,933.20, 605,899.80 and 235,643.55 is: 353,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,933.20 : 605,899.80 = 235,643.55 : x
  2. Step 2: Convert to fraction form
    403,933.20/605,899.80 = 235,643.55/x
  3. Step 3: Cross multiply
    403,933.20x = 605,899.80 × 235,643.55
  4. Step 4: Simplify right side
    403,933.20x = 142,776,379,816.29
  5. Step 5: Solve for x
    x = 142,776,379,816.29/403,933.20
  6. Step 6: Final answer
    x = 353,465.33

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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.