Home / 281,728.11-388,784.03-152,670.16

Finding the Fourth Proportional to 281,728.11, 388,784.03 and 152,670.16

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Solution

The fourth proportional to 281,728.11, 388,784.03 and 152,670.16 is: 210,684.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,728.11 : 388,784.03 = 152,670.16 : x
  2. Step 2: Convert to fraction form
    281,728.11/388,784.03 = 152,670.16/x
  3. Step 3: Cross multiply
    281,728.11x = 388,784.03 × 152,670.16
  4. Step 4: Simplify right side
    281,728.11x = 59,355,720,065.54
  5. Step 5: Solve for x
    x = 59,355,720,065.54/281,728.11
  6. Step 6: Final answer
    x = 210,684.41

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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.