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Finding the Fourth Proportional to 215,148.44, 296,926.62 and 123,279.89

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Solution

The fourth proportional to 215,148.44, 296,926.62 and 123,279.89 is: 170,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,148.44 : 296,926.62 = 123,279.89 : x
  2. Step 2: Convert to fraction form
    215,148.44/296,926.62 = 123,279.89/x
  3. Step 3: Cross multiply
    215,148.44x = 296,926.62 × 123,279.89
  4. Step 4: Simplify right side
    215,148.44x = 36,605,081,051.67
  5. Step 5: Solve for x
    x = 36,605,081,051.67/215,148.44
  6. Step 6: Final answer
    x = 170,138.72

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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.