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Finding the Fourth Proportional to 202,457.96, 279,394.09 and 111,816.22

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Solution

The fourth proportional to 202,457.96, 279,394.09 and 111,816.22 is: 154,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,457.96 : 279,394.09 = 111,816.22 : x
  2. Step 2: Convert to fraction form
    202,457.96/279,394.09 = 111,816.22/x
  3. Step 3: Cross multiply
    202,457.96x = 279,394.09 × 111,816.22
  4. Step 4: Simplify right side
    202,457.96x = 31,240,791,103.84
  5. Step 5: Solve for x
    x = 31,240,791,103.84/202,457.96
  6. Step 6: Final answer
    x = 154,307.55

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1.5x scale

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.