Home / 421,244.04-631,898.72-140,762.28

Finding the Fourth Proportional to 421,244.04, 631,898.72 and 140,762.28

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Solution

The fourth proportional to 421,244.04, 631,898.72 and 140,762.28 is: 211,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,244.04 : 631,898.72 = 140,762.28 : x
  2. Step 2: Convert to fraction form
    421,244.04/631,898.72 = 140,762.28/x
  3. Step 3: Cross multiply
    421,244.04x = 631,898.72 × 140,762.28
  4. Step 4: Simplify right side
    421,244.04x = 88,947,504,556.28
  5. Step 5: Solve for x
    x = 88,947,504,556.28/421,244.04
  6. Step 6: Final answer
    x = 211,154.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.