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Finding the Fourth Proportional to 290,105.58, 433,172.97 and 259,924.98

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Solution

The fourth proportional to 290,105.58, 433,172.97 and 259,924.98 is: 388,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,105.58 : 433,172.97 = 259,924.98 : x
  2. Step 2: Convert to fraction form
    290,105.58/433,172.97 = 259,924.98/x
  3. Step 3: Cross multiply
    290,105.58x = 433,172.97 × 259,924.98
  4. Step 4: Simplify right side
    290,105.58x = 112,592,475,563.79
  5. Step 5: Solve for x
    x = 112,592,475,563.79/290,105.58
  6. Step 6: Final answer
    x = 388,108.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.