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Finding the Fourth Proportional to 276,300.46, 414,438.36 and 86,756.32

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Solution

The fourth proportional to 276,300.46, 414,438.36 and 86,756.32 is: 130,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,300.46 : 414,438.36 = 86,756.32 : x
  2. Step 2: Convert to fraction form
    276,300.46/414,438.36 = 86,756.32/x
  3. Step 3: Cross multiply
    276,300.46x = 414,438.36 × 86,756.32
  4. Step 4: Simplify right side
    276,300.46x = 35,955,146,980.44
  5. Step 5: Solve for x
    x = 35,955,146,980.44/276,300.46
  6. Step 6: Final answer
    x = 130,130.61

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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.