Home / 281,621.54-388,638.60-152,561.36

Finding the Fourth Proportional to 281,621.54, 388,638.60 and 152,561.36

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Solution

The fourth proportional to 281,621.54, 388,638.60 and 152,561.36 is: 210,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,621.54 : 388,638.60 = 152,561.36 : x
  2. Step 2: Convert to fraction form
    281,621.54/388,638.60 = 152,561.36/x
  3. Step 3: Cross multiply
    281,621.54x = 388,638.60 × 152,561.36
  4. Step 4: Simplify right side
    281,621.54x = 59,291,233,364.50
  5. Step 5: Solve for x
    x = 59,291,233,364.50/281,621.54
  6. Step 6: Final answer
    x = 210,535.15

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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.