Home / 281,220.90-388,084.74-153,896.46

Finding the Fourth Proportional to 281,220.90, 388,084.74 and 153,896.46

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Solution

The fourth proportional to 281,220.90, 388,084.74 and 153,896.46 is: 212,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,220.90 : 388,084.74 = 153,896.46 : x
  2. Step 2: Convert to fraction form
    281,220.90/388,084.74 = 153,896.46/x
  3. Step 3: Cross multiply
    281,220.90x = 388,084.74 × 153,896.46
  4. Step 4: Simplify right side
    281,220.90x = 59,724,867,666.02
  5. Step 5: Solve for x
    x = 59,724,867,666.02/281,220.90
  6. Step 6: Final answer
    x = 212,377.06

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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.