Home / 276,330.15-381,349.22-155,465.19

Finding the Fourth Proportional to 276,330.15, 381,349.22 and 155,465.19

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Solution

The fourth proportional to 276,330.15, 381,349.22 and 155,465.19 is: 214,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,330.15 : 381,349.22 = 155,465.19 : x
  2. Step 2: Convert to fraction form
    276,330.15/381,349.22 = 155,465.19/x
  3. Step 3: Cross multiply
    276,330.15x = 381,349.22 × 155,465.19
  4. Step 4: Simplify right side
    276,330.15x = 59,286,528,166.33
  5. Step 5: Solve for x
    x = 59,286,528,166.33/276,330.15
  6. Step 6: Final answer
    x = 214,549.62

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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.