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Finding the Fourth Proportional to 215,877.78, 297,993.40 and 162,318.32

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Solution

The fourth proportional to 215,877.78, 297,993.40 and 162,318.32 is: 224,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,877.78 : 297,993.40 = 162,318.32 : x
  2. Step 2: Convert to fraction form
    215,877.78/297,993.40 = 162,318.32/x
  3. Step 3: Cross multiply
    215,877.78x = 297,993.40 × 162,318.32
  4. Step 4: Simplify right side
    215,877.78x = 48,369,788,059.09
  5. Step 5: Solve for x
    x = 48,369,788,059.09/215,877.78
  6. Step 6: Final answer
    x = 224,060.99

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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.