Home / 290,048.07-400,339.91-198,204.55

Finding the Fourth Proportional to 290,048.07, 400,339.91 and 198,204.55

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Solution

The fourth proportional to 290,048.07, 400,339.91 and 198,204.55 is: 273,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,048.07 : 400,339.91 = 198,204.55 : x
  2. Step 2: Convert to fraction form
    290,048.07/400,339.91 = 198,204.55/x
  3. Step 3: Cross multiply
    290,048.07x = 400,339.91 × 198,204.55
  4. Step 4: Simplify right side
    290,048.07x = 79,349,191,203.25
  5. Step 5: Solve for x
    x = 79,349,191,203.25/290,048.07
  6. Step 6: Final answer
    x = 273,572.55

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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.