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Finding the Fourth Proportional to 276,080.80, 414,130.40 and 76,384.47

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Solution

The fourth proportional to 276,080.80, 414,130.40 and 76,384.47 is: 114,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,080.80 : 414,130.40 = 76,384.47 : x
  2. Step 2: Convert to fraction form
    276,080.80/414,130.40 = 76,384.47/x
  3. Step 3: Cross multiply
    276,080.80x = 414,130.40 × 76,384.47
  4. Step 4: Simplify right side
    276,080.80x = 31,633,131,114.89
  5. Step 5: Solve for x
    x = 31,633,131,114.89/276,080.80
  6. Step 6: Final answer
    x = 114,579.25

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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.