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Finding the Fourth Proportional to 202,642.44, 279,681.32 and 117,808.72

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Solution

The fourth proportional to 202,642.44, 279,681.32 and 117,808.72 is: 162,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,642.44 : 279,681.32 = 117,808.72 : x
  2. Step 2: Convert to fraction form
    202,642.44/279,681.32 = 117,808.72/x
  3. Step 3: Cross multiply
    202,642.44x = 279,681.32 × 117,808.72
  4. Step 4: Simplify right side
    202,642.44x = 32,948,898,317.11
  5. Step 5: Solve for x
    x = 32,948,898,317.11/202,642.44
  6. Step 6: Final answer
    x = 162,596.24

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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.