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Finding the Fourth Proportional to 276,017.10, 380,935.17 and 153,521.87

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Solution

The fourth proportional to 276,017.10, 380,935.17 and 153,521.87 is: 211,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,017.10 : 380,935.17 = 153,521.87 : x
  2. Step 2: Convert to fraction form
    276,017.10/380,935.17 = 153,521.87/x
  3. Step 3: Cross multiply
    276,017.10x = 380,935.17 × 153,521.87
  4. Step 4: Simplify right side
    276,017.10x = 58,481,877,742.49
  5. Step 5: Solve for x
    x = 58,481,877,742.49/276,017.10
  6. Step 6: Final answer
    x = 211,877.73

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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.