Home / 215,415.26-323,118.27-57,643.70

Finding the Fourth Proportional to 215,415.26, 323,118.27 and 57,643.70

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Solution

The fourth proportional to 215,415.26, 323,118.27 and 57,643.70 is: 86,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,415.26 : 323,118.27 = 57,643.70 : x
  2. Step 2: Convert to fraction form
    215,415.26/323,118.27 = 57,643.70/x
  3. Step 3: Cross multiply
    215,415.26x = 323,118.27 × 57,643.70
  4. Step 4: Simplify right side
    215,415.26x = 18,625,732,620.40
  5. Step 5: Solve for x
    x = 18,625,732,620.40/215,415.26
  6. Step 6: Final answer
    x = 86,464.31

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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.