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Finding the Fourth Proportional to 372,807.70, 514,480.50 and 203,041.70

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Solution

The fourth proportional to 372,807.70, 514,480.50 and 203,041.70 is: 280,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,807.70 : 514,480.50 = 203,041.70 : x
  2. Step 2: Convert to fraction form
    372,807.70/514,480.50 = 203,041.70/x
  3. Step 3: Cross multiply
    372,807.70x = 514,480.50 × 203,041.70
  4. Step 4: Simplify right side
    372,807.70x = 104,460,995,336.85
  5. Step 5: Solve for x
    x = 104,460,995,336.85/372,807.70
  6. Step 6: Final answer
    x = 280,200.75

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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.