Home / 276,681.16-381,815.94-155,822.68

Finding the Fourth Proportional to 276,681.16, 381,815.94 and 155,822.68

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Solution

The fourth proportional to 276,681.16, 381,815.94 and 155,822.68 is: 215,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,681.16 : 381,815.94 = 155,822.68 : x
  2. Step 2: Convert to fraction form
    276,681.16/381,815.94 = 155,822.68/x
  3. Step 3: Cross multiply
    276,681.16x = 381,815.94 × 155,822.68
  4. Step 4: Simplify right side
    276,681.16x = 59,495,583,037.52
  5. Step 5: Solve for x
    x = 59,495,583,037.52/276,681.16
  6. Step 6: Final answer
    x = 215,033.01

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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.