Home / 281,220.46-388,083.21-152,158.54

Finding the Fourth Proportional to 281,220.46, 388,083.21 and 152,158.54

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Solution

The fourth proportional to 281,220.46, 388,083.21 and 152,158.54 is: 209,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,220.46 : 388,083.21 = 152,158.54 : x
  2. Step 2: Convert to fraction form
    281,220.46/388,083.21 = 152,158.54/x
  3. Step 3: Cross multiply
    281,220.46x = 388,083.21 × 152,158.54
  4. Step 4: Simplify right side
    281,220.46x = 59,050,174,632.11
  5. Step 5: Solve for x
    x = 59,050,174,632.11/281,220.46
  6. Step 6: Final answer
    x = 209,978.23

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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.