Home / 276,280.14-381,266.04-155,421.52

Finding the Fourth Proportional to 276,280.14, 381,266.04 and 155,421.52

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Solution

The fourth proportional to 276,280.14, 381,266.04 and 155,421.52 is: 214,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,280.14 : 381,266.04 = 155,421.52 : x
  2. Step 2: Convert to fraction form
    276,280.14/381,266.04 = 155,421.52/x
  3. Step 3: Cross multiply
    276,280.14x = 381,266.04 × 155,421.52
  4. Step 4: Simplify right side
    276,280.14x = 59,256,947,461.18
  5. Step 5: Solve for x
    x = 59,256,947,461.18/276,280.14
  6. Step 6: Final answer
    x = 214,481.39

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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.