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Finding the Fourth Proportional to 215,335.67, 297,157.01 and 119,840.31

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Solution

The fourth proportional to 215,335.67, 297,157.01 and 119,840.31 is: 165,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,335.67 : 297,157.01 = 119,840.31 : x
  2. Step 2: Convert to fraction form
    215,335.67/297,157.01 = 119,840.31/x
  3. Step 3: Cross multiply
    215,335.67x = 297,157.01 × 119,840.31
  4. Step 4: Simplify right side
    215,335.67x = 35,611,387,597.87
  5. Step 5: Solve for x
    x = 35,611,387,597.87/215,335.67
  6. Step 6: Final answer
    x = 165,376.17

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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.