Home / 276,041.28-380,937.03-155,182.80

Finding the Fourth Proportional to 276,041.28, 380,937.03 and 155,182.80

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Solution

The fourth proportional to 276,041.28, 380,937.03 and 155,182.80 is: 214,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,041.28 : 380,937.03 = 155,182.80 : x
  2. Step 2: Convert to fraction form
    276,041.28/380,937.03 = 155,182.80/x
  3. Step 3: Cross multiply
    276,041.28x = 380,937.03 × 155,182.80
  4. Step 4: Simplify right side
    276,041.28x = 59,114,874,939.08
  5. Step 5: Solve for x
    x = 59,114,874,939.08/276,041.28
  6. Step 6: Final answer
    x = 214,152.30

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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.