Home / 287,467.20-396,674.32-166,646.40

Finding the Fourth Proportional to 287,467.20, 396,674.32 and 166,646.40

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Solution

The fourth proportional to 287,467.20, 396,674.32 and 166,646.40 is: 229,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,467.20 : 396,674.32 = 166,646.40 : x
  2. Step 2: Convert to fraction form
    287,467.20/396,674.32 = 166,646.40/x
  3. Step 3: Cross multiply
    287,467.20x = 396,674.32 × 166,646.40
  4. Step 4: Simplify right side
    287,467.20x = 66,104,347,400.45
  5. Step 5: Solve for x
    x = 66,104,347,400.45/287,467.20
  6. Step 6: Final answer
    x = 229,954.40

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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.