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Finding the Fourth Proportional to 215,659.43, 297,611.99 and 118,866.79

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Solution

The fourth proportional to 215,659.43, 297,611.99 and 118,866.79 is: 164,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,659.43 : 297,611.99 = 118,866.79 : x
  2. Step 2: Convert to fraction form
    215,659.43/297,611.99 = 118,866.79/x
  3. Step 3: Cross multiply
    215,659.43x = 297,611.99 × 118,866.79
  4. Step 4: Simplify right side
    215,659.43x = 35,376,181,916.81
  5. Step 5: Solve for x
    x = 35,376,181,916.81/215,659.43
  6. Step 6: Final answer
    x = 164,037.26

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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.