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Finding the Fourth Proportional to 288,954, 398,756.52 and 188,352

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Solution

The fourth proportional to 288,954, 398,756.52 and 188,352 is: 259,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,954 : 398,756.52 = 188,352 : x
  2. Step 2: Convert to fraction form
    288,954/398,756.52 = 188,352/x
  3. Step 3: Cross multiply
    288,954x = 398,756.52 × 188,352
  4. Step 4: Simplify right side
    288,954x = 75,106,588,055.04
  5. Step 5: Solve for x
    x = 75,106,588,055.04/288,954
  6. Step 6: Final answer
    x = 259,925.76

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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.