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Finding the Fourth Proportional to 307,640.20, 460,682.70 and 201,886.60

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Solution

The fourth proportional to 307,640.20, 460,682.70 and 201,886.60 is: 302,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,640.20 : 460,682.70 = 201,886.60 : x
  2. Step 2: Convert to fraction form
    307,640.20/460,682.70 = 201,886.60/x
  3. Step 3: Cross multiply
    307,640.20x = 460,682.70 × 201,886.60
  4. Step 4: Simplify right side
    307,640.20x = 93,005,663,981.82
  5. Step 5: Solve for x
    x = 93,005,663,981.82/307,640.20
  6. Step 6: Final answer
    x = 302,319.61

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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.