Home / 218,986.35-328,478.99-52,774.35

Finding the Fourth Proportional to 218,986.35, 328,478.99 and 52,774.35

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Solution

The fourth proportional to 218,986.35, 328,478.99 and 52,774.35 is: 79,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,986.35 : 328,478.99 = 52,774.35 : x
  2. Step 2: Convert to fraction form
    218,986.35/328,478.99 = 52,774.35/x
  3. Step 3: Cross multiply
    218,986.35x = 328,478.99 × 52,774.35
  4. Step 4: Simplify right side
    218,986.35x = 17,335,265,185.91
  5. Step 5: Solve for x
    x = 17,335,265,185.91/218,986.35
  6. Step 6: Final answer
    x = 79,161.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.