Home / 287,401.30-396,613.90-166,612.61

Finding the Fourth Proportional to 287,401.30, 396,613.90 and 166,612.61

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Solution

The fourth proportional to 287,401.30, 396,613.90 and 166,612.61 is: 229,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,401.30 : 396,613.90 = 166,612.61 : x
  2. Step 2: Convert to fraction form
    287,401.30/396,613.90 = 166,612.61/x
  3. Step 3: Cross multiply
    287,401.30x = 396,613.90 × 166,612.61
  4. Step 4: Simplify right side
    287,401.30x = 66,080,874,225.15
  5. Step 5: Solve for x
    x = 66,080,874,225.15/287,401.30
  6. Step 6: Final answer
    x = 229,925.46

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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.