Home / 238,840.12-357,964.50-209,315.56

Finding the Fourth Proportional to 238,840.12, 357,964.50 and 209,315.56

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Solution

The fourth proportional to 238,840.12, 357,964.50 and 209,315.56 is: 313,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,840.12 : 357,964.50 = 209,315.56 : x
  2. Step 2: Convert to fraction form
    238,840.12/357,964.50 = 209,315.56/x
  3. Step 3: Cross multiply
    238,840.12x = 357,964.50 × 209,315.56
  4. Step 4: Simplify right side
    238,840.12x = 74,927,539,777.62
  5. Step 5: Solve for x
    x = 74,927,539,777.62/238,840.12
  6. Step 6: Final answer
    x = 313,714.21

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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.