Home / 215,325.39-322,988.21-96,858.35

Finding the Fourth Proportional to 215,325.39, 322,988.21 and 96,858.35

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Solution

The fourth proportional to 215,325.39, 322,988.21 and 96,858.35 is: 145,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,325.39 : 322,988.21 = 96,858.35 : x
  2. Step 2: Convert to fraction form
    215,325.39/322,988.21 = 96,858.35/x
  3. Step 3: Cross multiply
    215,325.39x = 322,988.21 × 96,858.35
  4. Step 4: Simplify right side
    215,325.39x = 31,284,102,990.82
  5. Step 5: Solve for x
    x = 31,284,102,990.82/215,325.39
  6. Step 6: Final answer
    x = 145,287.57

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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.