Home / 281,166.48-388,015.32-153,844.80

Finding the Fourth Proportional to 281,166.48, 388,015.32 and 153,844.80

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Solution

The fourth proportional to 281,166.48, 388,015.32 and 153,844.80 is: 212,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,166.48 : 388,015.32 = 153,844.80 : x
  2. Step 2: Convert to fraction form
    281,166.48/388,015.32 = 153,844.80/x
  3. Step 3: Cross multiply
    281,166.48x = 388,015.32 × 153,844.80
  4. Step 4: Simplify right side
    281,166.48x = 59,694,139,302.34
  5. Step 5: Solve for x
    x = 59,694,139,302.34/281,166.48
  6. Step 6: Final answer
    x = 212,308.88

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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.