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Finding the Fourth Proportional to 197,433.60, 296,085.60 and 72,758.40

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Solution

The fourth proportional to 197,433.60, 296,085.60 and 72,758.40 is: 109,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,433.60 : 296,085.60 = 72,758.40 : x
  2. Step 2: Convert to fraction form
    197,433.60/296,085.60 = 72,758.40/x
  3. Step 3: Cross multiply
    197,433.60x = 296,085.60 × 72,758.40
  4. Step 4: Simplify right side
    197,433.60x = 21,542,714,519.04
  5. Step 5: Solve for x
    x = 21,542,714,519.04/197,433.60
  6. Step 6: Final answer
    x = 109,113.72

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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.