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Finding the Fourth Proportional to 265,717.64, 398,766 and 147,483.56

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Solution

The fourth proportional to 265,717.64, 398,766 and 147,483.56 is: 221,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,717.64 : 398,766 = 147,483.56 : x
  2. Step 2: Convert to fraction form
    265,717.64/398,766 = 147,483.56/x
  3. Step 3: Cross multiply
    265,717.64x = 398,766 × 147,483.56
  4. Step 4: Simplify right side
    265,717.64x = 58,811,429,286.96
  5. Step 5: Solve for x
    x = 58,811,429,286.96/265,717.64
  6. Step 6: Final answer
    x = 221,330.54

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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.