Home / 290,050.07-400,342.67-198,206.55

Finding the Fourth Proportional to 290,050.07, 400,342.67 and 198,206.55

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Solution

The fourth proportional to 290,050.07, 400,342.67 and 198,206.55 is: 273,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,050.07 : 400,342.67 = 198,206.55 : x
  2. Step 2: Convert to fraction form
    290,050.07/400,342.67 = 198,206.55/x
  3. Step 3: Cross multiply
    290,050.07x = 400,342.67 × 198,206.55
  4. Step 4: Simplify right side
    290,050.07x = 79,350,539,438.49
  5. Step 5: Solve for x
    x = 79,350,539,438.49/290,050.07
  6. Step 6: Final answer
    x = 273,575.32

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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.