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Finding the Fourth Proportional to 202,567.37, 279,559.34 and 111,931.28

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Solution

The fourth proportional to 202,567.37, 279,559.34 and 111,931.28 is: 154,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,567.37 : 279,559.34 = 111,931.28 : x
  2. Step 2: Convert to fraction form
    202,567.37/279,559.34 = 111,931.28/x
  3. Step 3: Cross multiply
    202,567.37x = 279,559.34 × 111,931.28
  4. Step 4: Simplify right side
    202,567.37x = 31,291,433,644.19
  5. Step 5: Solve for x
    x = 31,291,433,644.19/202,567.37
  6. Step 6: Final answer
    x = 154,474.20

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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.