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Finding the Fourth Proportional to 203,166.72, 280,370.88 and 118,342.08

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Solution

The fourth proportional to 203,166.72, 280,370.88 and 118,342.08 is: 163,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,166.72 : 280,370.88 = 118,342.08 : x
  2. Step 2: Convert to fraction form
    203,166.72/280,370.88 = 118,342.08/x
  3. Step 3: Cross multiply
    203,166.72x = 280,370.88 × 118,342.08
  4. Step 4: Simplify right side
    203,166.72x = 33,179,673,110.63
  5. Step 5: Solve for x
    x = 33,179,673,110.63/203,166.72
  6. Step 6: Final answer
    x = 163,312.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.