Home / 421,350.03-632,274.66-155,297.43

Finding the Fourth Proportional to 421,350.03, 632,274.66 and 155,297.43

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Solution

The fourth proportional to 421,350.03, 632,274.66 and 155,297.43 is: 233,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,350.03 : 632,274.66 = 155,297.43 : x
  2. Step 2: Convert to fraction form
    421,350.03/632,274.66 = 155,297.43/x
  3. Step 3: Cross multiply
    421,350.03x = 632,274.66 × 155,297.43
  4. Step 4: Simplify right side
    421,350.03x = 98,190,629,752.12
  5. Step 5: Solve for x
    x = 98,190,629,752.12/421,350.03
  6. Step 6: Final answer
    x = 233,038.15

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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.