Home / 218,986.23-328,478.80-52,774.23

Finding the Fourth Proportional to 218,986.23, 328,478.80 and 52,774.23

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Solution

The fourth proportional to 218,986.23, 328,478.80 and 52,774.23 is: 79,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,986.23 : 328,478.80 = 52,774.23 : x
  2. Step 2: Convert to fraction form
    218,986.23/328,478.80 = 52,774.23/x
  3. Step 3: Cross multiply
    218,986.23x = 328,478.80 × 52,774.23
  4. Step 4: Simplify right side
    218,986.23x = 17,335,215,741.32
  5. Step 5: Solve for x
    x = 17,335,215,741.32/218,986.23
  6. Step 6: Final answer
    x = 79,161.21

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1.5x scale

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.