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Finding the Fourth Proportional to 540,456.56, 810,800.76 and 161,407.16

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Solution

The fourth proportional to 540,456.56, 810,800.76 and 161,407.16 is: 242,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,456.56 : 810,800.76 = 161,407.16 : x
  2. Step 2: Convert to fraction form
    540,456.56/810,800.76 = 161,407.16/x
  3. Step 3: Cross multiply
    540,456.56x = 810,800.76 × 161,407.16
  4. Step 4: Simplify right side
    540,456.56x = 130,869,047,997.44
  5. Step 5: Solve for x
    x = 130,869,047,997.44/540,456.56
  6. Step 6: Final answer
    x = 242,145.36

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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.