Home / 276,331.08-381,334.20-153,821.52

Finding the Fourth Proportional to 276,331.08, 381,334.20 and 153,821.52

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Solution

The fourth proportional to 276,331.08, 381,334.20 and 153,821.52 is: 212,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,331.08 : 381,334.20 = 153,821.52 : x
  2. Step 2: Convert to fraction form
    276,331.08/381,334.20 = 153,821.52/x
  3. Step 3: Cross multiply
    276,331.08x = 381,334.20 × 153,821.52
  4. Step 4: Simplify right side
    276,331.08x = 58,657,406,271.98
  5. Step 5: Solve for x
    x = 58,657,406,271.98/276,331.08
  6. Step 6: Final answer
    x = 212,272.20

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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.