Home / 276,283.19-381,292.94-155,417.27

Finding the Fourth Proportional to 276,283.19, 381,292.94 and 155,417.27

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Solution

The fourth proportional to 276,283.19, 381,292.94 and 155,417.27 is: 214,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,283.19 : 381,292.94 = 155,417.27 : x
  2. Step 2: Convert to fraction form
    276,283.19/381,292.94 = 155,417.27/x
  3. Step 3: Cross multiply
    276,283.19x = 381,292.94 × 155,417.27
  4. Step 4: Simplify right side
    276,283.19x = 59,259,507,027.99
  5. Step 5: Solve for x
    x = 59,259,507,027.99/276,283.19
  6. Step 6: Final answer
    x = 214,488.28

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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.