Home / 281,270.22-388,153.92-152,208.68

Finding the Fourth Proportional to 281,270.22, 388,153.92 and 152,208.68

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Solution

The fourth proportional to 281,270.22, 388,153.92 and 152,208.68 is: 210,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,270.22 : 388,153.92 = 152,208.68 : x
  2. Step 2: Convert to fraction form
    281,270.22/388,153.92 = 152,208.68/x
  3. Step 3: Cross multiply
    281,270.22x = 388,153.92 × 152,208.68
  4. Step 4: Simplify right side
    281,270.22x = 59,080,394,430.04
  5. Step 5: Solve for x
    x = 59,080,394,430.04/281,270.22
  6. Step 6: Final answer
    x = 210,048.53

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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.