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Finding the Fourth Proportional to 288,970.79, 398,809.70 and 166,467.39

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Solution

The fourth proportional to 288,970.79, 398,809.70 and 166,467.39 is: 229,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,970.79 : 398,809.70 = 166,467.39 : x
  2. Step 2: Convert to fraction form
    288,970.79/398,809.70 = 166,467.39/x
  3. Step 3: Cross multiply
    288,970.79x = 398,809.70 × 166,467.39
  4. Step 4: Simplify right side
    288,970.79x = 66,388,809,033.35
  5. Step 5: Solve for x
    x = 66,388,809,033.35/288,970.79
  6. Step 6: Final answer
    x = 229,742.29

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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.