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Finding the Fourth Proportional to 319,699.60, 441,157.50 and 204,775.48

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Solution

The fourth proportional to 319,699.60, 441,157.50 and 204,775.48 is: 282,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,699.60 : 441,157.50 = 204,775.48 : x
  2. Step 2: Convert to fraction form
    319,699.60/441,157.50 = 204,775.48/x
  3. Step 3: Cross multiply
    319,699.60x = 441,157.50 × 204,775.48
  4. Step 4: Simplify right side
    319,699.60x = 90,338,239,369.55
  5. Step 5: Solve for x
    x = 90,338,239,369.55/319,699.60
  6. Step 6: Final answer
    x = 282,572.26

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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.