Home / 318,975.24-440,216.94-238,262.76

Finding the Fourth Proportional to 318,975.24, 440,216.94 and 238,262.76

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Solution

The fourth proportional to 318,975.24, 440,216.94 and 238,262.76 is: 328,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,975.24 : 440,216.94 = 238,262.76 : x
  2. Step 2: Convert to fraction form
    318,975.24/440,216.94 = 238,262.76/x
  3. Step 3: Cross multiply
    318,975.24x = 440,216.94 × 238,262.76
  4. Step 4: Simplify right side
    318,975.24x = 104,887,303,123.15
  5. Step 5: Solve for x
    x = 104,887,303,123.15/318,975.24
  6. Step 6: Final answer
    x = 328,825.85

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1.5x scale

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.