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Finding the Fourth Proportional to 215,763.51, 297,741.02 and 123,861.35

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Solution

The fourth proportional to 215,763.51, 297,741.02 and 123,861.35 is: 170,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,763.51 : 297,741.02 = 123,861.35 : x
  2. Step 2: Convert to fraction form
    215,763.51/297,741.02 = 123,861.35/x
  3. Step 3: Cross multiply
    215,763.51x = 297,741.02 × 123,861.35
  4. Step 4: Simplify right side
    215,763.51x = 36,878,604,812.62
  5. Step 5: Solve for x
    x = 36,878,604,812.62/215,763.51
  6. Step 6: Final answer
    x = 170,921.41

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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.