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Finding the Fourth Proportional to 359,012.24, 495,430.45 and 195,670.21

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Solution

The fourth proportional to 359,012.24, 495,430.45 and 195,670.21 is: 270,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,012.24 : 495,430.45 = 195,670.21 : x
  2. Step 2: Convert to fraction form
    359,012.24/495,430.45 = 195,670.21/x
  3. Step 3: Cross multiply
    359,012.24x = 495,430.45 × 195,670.21
  4. Step 4: Simplify right side
    359,012.24x = 96,940,980,191.89
  5. Step 5: Solve for x
    x = 96,940,980,191.89/359,012.24
  6. Step 6: Final answer
    x = 270,021.38

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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.