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Finding the Fourth Proportional to 202,349.96, 279,239.50 and 111,703.60

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Solution

The fourth proportional to 202,349.96, 279,239.50 and 111,703.60 is: 154,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,349.96 : 279,239.50 = 111,703.60 : x
  2. Step 2: Convert to fraction form
    202,349.96/279,239.50 = 111,703.60/x
  3. Step 3: Cross multiply
    202,349.96x = 279,239.50 × 111,703.60
  4. Step 4: Simplify right side
    202,349.96x = 31,192,057,412.20
  5. Step 5: Solve for x
    x = 31,192,057,412.20/202,349.96
  6. Step 6: Final answer
    x = 154,149.07

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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.