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Finding the Fourth Proportional to 372,852.40, 514,465.48 and 219,938.64

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Solution

The fourth proportional to 372,852.40, 514,465.48 and 219,938.64 is: 303,473.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,852.40 : 514,465.48 = 219,938.64 : x
  2. Step 2: Convert to fraction form
    372,852.40/514,465.48 = 219,938.64/x
  3. Step 3: Cross multiply
    372,852.40x = 514,465.48 × 219,938.64
  4. Step 4: Simplify right side
    372,852.40x = 113,150,837,998.15
  5. Step 5: Solve for x
    x = 113,150,837,998.15/372,852.40
  6. Step 6: Final answer
    x = 303,473.54

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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.