Home / 289,055.55-398,631.62-248,205.79

Finding the Fourth Proportional to 289,055.55, 398,631.62 and 248,205.79

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Solution

The fourth proportional to 289,055.55, 398,631.62 and 248,205.79 is: 342,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,055.55 : 398,631.62 = 248,205.79 : x
  2. Step 2: Convert to fraction form
    289,055.55/398,631.62 = 248,205.79/x
  3. Step 3: Cross multiply
    289,055.55x = 398,631.62 × 248,205.79
  4. Step 4: Simplify right side
    289,055.55x = 98,942,676,161.08
  5. Step 5: Solve for x
    x = 98,942,676,161.08/289,055.55
  6. Step 6: Final answer
    x = 342,296.41

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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.