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Finding the Fourth Proportional to 540,548.40, 810,921.42 and 180,685.20

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Solution

The fourth proportional to 540,548.40, 810,921.42 and 180,685.20 is: 271,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,548.40 : 810,921.42 = 180,685.20 : x
  2. Step 2: Convert to fraction form
    540,548.40/810,921.42 = 180,685.20/x
  3. Step 3: Cross multiply
    540,548.40x = 810,921.42 × 180,685.20
  4. Step 4: Simplify right side
    540,548.40x = 146,521,498,956.98
  5. Step 5: Solve for x
    x = 146,521,498,956.98/540,548.40
  6. Step 6: Final answer
    x = 271,060.83

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.