Home / 403,926.18-605,374.10-214,477.31

Finding the Fourth Proportional to 403,926.18, 605,374.10 and 214,477.31

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Solution

The fourth proportional to 403,926.18, 605,374.10 and 214,477.31 is: 321,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,926.18 : 605,374.10 = 214,477.31 : x
  2. Step 2: Convert to fraction form
    403,926.18/605,374.10 = 214,477.31/x
  3. Step 3: Cross multiply
    403,926.18x = 605,374.10 × 214,477.31
  4. Step 4: Simplify right side
    403,926.18x = 129,839,005,484.80
  5. Step 5: Solve for x
    x = 129,839,005,484.80/403,926.18
  6. Step 6: Final answer
    x = 321,442.41

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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.