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Finding the Fourth Proportional to 540,803.08, 810,632.58 and 203,697.88

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Solution

The fourth proportional to 540,803.08, 810,632.58 and 203,697.88 is: 305,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,803.08 : 810,632.58 = 203,697.88 : x
  2. Step 2: Convert to fraction form
    540,803.08/810,632.58 = 203,697.88/x
  3. Step 3: Cross multiply
    540,803.08x = 810,632.58 × 203,697.88
  4. Step 4: Simplify right side
    540,803.08x = 165,124,138,004.93
  5. Step 5: Solve for x
    x = 165,124,138,004.93/540,803.08
  6. Step 6: Final answer
    x = 305,331.36

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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.