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Finding the Fourth Proportional to 372,009.76, 513,379.32 and 202,244.56

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Solution

The fourth proportional to 372,009.76, 513,379.32 and 202,244.56 is: 279,100.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,009.76 : 513,379.32 = 202,244.56 : x
  2. Step 2: Convert to fraction form
    372,009.76/513,379.32 = 202,244.56/x
  3. Step 3: Cross multiply
    372,009.76x = 513,379.32 × 202,244.56
  4. Step 4: Simplify right side
    372,009.76x = 103,828,174,686.50
  5. Step 5: Solve for x
    x = 103,828,174,686.50/372,009.76
  6. Step 6: Final answer
    x = 279,100.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.