Home / 288,313.44-398,146.32-272,605.92

Finding the Fourth Proportional to 288,313.44, 398,146.32 and 272,605.92

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Solution

The fourth proportional to 288,313.44, 398,146.32 and 272,605.92 is: 376,455.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,313.44 : 398,146.32 = 272,605.92 : x
  2. Step 2: Convert to fraction form
    288,313.44/398,146.32 = 272,605.92/x
  3. Step 3: Cross multiply
    288,313.44x = 398,146.32 × 272,605.92
  4. Step 4: Simplify right side
    288,313.44x = 108,537,043,858.21
  5. Step 5: Solve for x
    x = 108,537,043,858.21/288,313.44
  6. Step 6: Final answer
    x = 376,455.03

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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.