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Finding the Fourth Proportional to 276,053.12, 380,943.44 and 153,544.80

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Solution

The fourth proportional to 276,053.12, 380,943.44 and 153,544.80 is: 211,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,053.12 : 380,943.44 = 153,544.80 : x
  2. Step 2: Convert to fraction form
    276,053.12/380,943.44 = 153,544.80/x
  3. Step 3: Cross multiply
    276,053.12x = 380,943.44 × 153,544.80
  4. Step 4: Simplify right side
    276,053.12x = 58,491,884,306.11
  5. Step 5: Solve for x
    x = 58,491,884,306.11/276,053.12
  6. Step 6: Final answer
    x = 211,886.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.