Home / 218,864.40-328,296.60-113,888.40

Finding the Fourth Proportional to 218,864.40, 328,296.60 and 113,888.40

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Solution

The fourth proportional to 218,864.40, 328,296.60 and 113,888.40 is: 170,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,864.40 : 328,296.60 = 113,888.40 : x
  2. Step 2: Convert to fraction form
    218,864.40/328,296.60 = 113,888.40/x
  3. Step 3: Cross multiply
    218,864.40x = 328,296.60 × 113,888.40
  4. Step 4: Simplify right side
    218,864.40x = 37,389,174,499.44
  5. Step 5: Solve for x
    x = 37,389,174,499.44/218,864.40
  6. Step 6: Final answer
    x = 170,832.60

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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.