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Finding the Fourth Proportional to 217,262.90, 325,894.35 and 210,005.30

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Solution

The fourth proportional to 217,262.90, 325,894.35 and 210,005.30 is: 315,007.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,262.90 : 325,894.35 = 210,005.30 : x
  2. Step 2: Convert to fraction form
    217,262.90/325,894.35 = 210,005.30/x
  3. Step 3: Cross multiply
    217,262.90x = 325,894.35 × 210,005.30
  4. Step 4: Simplify right side
    217,262.90x = 68,439,540,740.06
  5. Step 5: Solve for x
    x = 68,439,540,740.06/217,262.90
  6. Step 6: Final answer
    x = 315,007.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.