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Finding the Fourth Proportional to 265,277.44, 397,397.76 and 140,446.72

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Solution

The fourth proportional to 265,277.44, 397,397.76 and 140,446.72 is: 210,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,277.44 : 397,397.76 = 140,446.72 : x
  2. Step 2: Convert to fraction form
    265,277.44/397,397.76 = 140,446.72/x
  3. Step 3: Cross multiply
    265,277.44x = 397,397.76 × 140,446.72
  4. Step 4: Simplify right side
    265,277.44x = 55,813,211,927.35
  5. Step 5: Solve for x
    x = 55,813,211,927.35/265,277.44
  6. Step 6: Final answer
    x = 210,395.62

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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.