Home / 359,120.07-495,589.05-197,980.90

Finding the Fourth Proportional to 359,120.07, 495,589.05 and 197,980.90

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Solution

The fourth proportional to 359,120.07, 495,589.05 and 197,980.90 is: 273,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,120.07 : 495,589.05 = 197,980.90 : x
  2. Step 2: Convert to fraction form
    359,120.07/495,589.05 = 197,980.90/x
  3. Step 3: Cross multiply
    359,120.07x = 495,589.05 × 197,980.90
  4. Step 4: Simplify right side
    359,120.07x = 98,117,164,910.17
  5. Step 5: Solve for x
    x = 98,117,164,910.17/359,120.07
  6. Step 6: Final answer
    x = 273,215.49

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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.