Home / 287,423.12-396,613.62-166,602.32

Finding the Fourth Proportional to 287,423.12, 396,613.62 and 166,602.32

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Solution

The fourth proportional to 287,423.12, 396,613.62 and 166,602.32 is: 229,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,423.12 : 396,613.62 = 166,602.32 : x
  2. Step 2: Convert to fraction form
    287,423.12/396,613.62 = 166,602.32/x
  3. Step 3: Cross multiply
    287,423.12x = 396,613.62 × 166,602.32
  4. Step 4: Simplify right side
    287,423.12x = 66,076,749,235.60
  5. Step 5: Solve for x
    x = 66,076,749,235.60/287,423.12
  6. Step 6: Final answer
    x = 229,893.65

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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.