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Finding the Fourth Proportional to 215,616.58, 323,483.22 and 122,187.94

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Solution

The fourth proportional to 215,616.58, 323,483.22 and 122,187.94 is: 183,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,616.58 : 323,483.22 = 122,187.94 : x
  2. Step 2: Convert to fraction form
    215,616.58/323,483.22 = 122,187.94/x
  3. Step 3: Cross multiply
    215,616.58x = 323,483.22 × 122,187.94
  4. Step 4: Simplify right side
    215,616.58x = 39,525,748,276.37
  5. Step 5: Solve for x
    x = 39,525,748,276.37/215,616.58
  6. Step 6: Final answer
    x = 183,314.98

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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.