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Finding the Fourth Proportional to 345,657.33, 477,015.87 and 192,720.42

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Solution

The fourth proportional to 345,657.33, 477,015.87 and 192,720.42 is: 265,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,657.33 : 477,015.87 = 192,720.42 : x
  2. Step 2: Convert to fraction form
    345,657.33/477,015.87 = 192,720.42/x
  3. Step 3: Cross multiply
    345,657.33x = 477,015.87 × 192,720.42
  4. Step 4: Simplify right side
    345,657.33x = 91,930,698,813.07
  5. Step 5: Solve for x
    x = 91,930,698,813.07/345,657.33
  6. Step 6: Final answer
    x = 265,959.06

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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.