Home / 276,335.02-381,315.11-155,473.64

Finding the Fourth Proportional to 276,335.02, 381,315.11 and 155,473.64

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Solution

The fourth proportional to 276,335.02, 381,315.11 and 155,473.64 is: 214,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,335.02 : 381,315.11 = 155,473.64 : x
  2. Step 2: Convert to fraction form
    276,335.02/381,315.11 = 155,473.64/x
  3. Step 3: Cross multiply
    276,335.02x = 381,315.11 × 155,473.64
  4. Step 4: Simplify right side
    276,335.02x = 59,284,445,454.76
  5. Step 5: Solve for x
    x = 59,284,445,454.76/276,335.02
  6. Step 6: Final answer
    x = 214,538.30

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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.