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Finding the Fourth Proportional to 276,355.40, 414,509.27 and 168,256.74

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Solution

The fourth proportional to 276,355.40, 414,509.27 and 168,256.74 is: 252,370.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,355.40 : 414,509.27 = 168,256.74 : x
  2. Step 2: Convert to fraction form
    276,355.40/414,509.27 = 168,256.74/x
  3. Step 3: Cross multiply
    276,355.40x = 414,509.27 × 168,256.74
  4. Step 4: Simplify right side
    276,355.40x = 69,743,980,602.77
  5. Step 5: Solve for x
    x = 69,743,980,602.77/276,355.40
  6. Step 6: Final answer
    x = 252,370.61

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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.