Home / 276,302.16-381,281.34-155,448.54

Finding the Fourth Proportional to 276,302.16, 381,281.34 and 155,448.54

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Solution

The fourth proportional to 276,302.16, 381,281.34 and 155,448.54 is: 214,510.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,302.16 : 381,281.34 = 155,448.54 : x
  2. Step 2: Convert to fraction form
    276,302.16/381,281.34 = 155,448.54/x
  3. Step 3: Cross multiply
    276,302.16x = 381,281.34 × 155,448.54
  4. Step 4: Simplify right side
    276,302.16x = 59,269,627,632.24
  5. Step 5: Solve for x
    x = 59,269,627,632.24/276,302.16
  6. Step 6: Final answer
    x = 214,510.19

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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.