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Finding the Fourth Proportional to 215,617.58, 323,484.72 and 122,188.94

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Solution

The fourth proportional to 215,617.58, 323,484.72 and 122,188.94 is: 183,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,617.58 : 323,484.72 = 122,188.94 : x
  2. Step 2: Convert to fraction form
    215,617.58/323,484.72 = 122,188.94/x
  3. Step 3: Cross multiply
    215,617.58x = 323,484.72 × 122,188.94
  4. Step 4: Simplify right side
    215,617.58x = 39,526,255,043.00
  5. Step 5: Solve for x
    x = 39,526,255,043.00/215,617.58
  6. Step 6: Final answer
    x = 183,316.48

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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.