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Finding the Fourth Proportional to 318,016.68, 438,873.54 and 174,781.80

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Solution

The fourth proportional to 318,016.68, 438,873.54 and 174,781.80 is: 241,204.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,016.68 : 438,873.54 = 174,781.80 : x
  2. Step 2: Convert to fraction form
    318,016.68/438,873.54 = 174,781.80/x
  3. Step 3: Cross multiply
    318,016.68x = 438,873.54 × 174,781.80
  4. Step 4: Simplify right side
    318,016.68x = 76,707,107,293.57
  5. Step 5: Solve for x
    x = 76,707,107,293.57/318,016.68
  6. Step 6: Final answer
    x = 241,204.67

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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.