Home / 276,135.13-381,068.77-155,275.37

Finding the Fourth Proportional to 276,135.13, 381,068.77 and 155,275.37

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Solution

The fourth proportional to 276,135.13, 381,068.77 and 155,275.37 is: 214,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,135.13 : 381,068.77 = 155,275.37 : x
  2. Step 2: Convert to fraction form
    276,135.13/381,068.77 = 155,275.37/x
  3. Step 3: Cross multiply
    276,135.13x = 381,068.77 × 155,275.37
  4. Step 4: Simplify right side
    276,135.13x = 59,170,593,683.81
  5. Step 5: Solve for x
    x = 59,170,593,683.81/276,135.13
  6. Step 6: Final answer
    x = 214,281.30

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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.