Home / 281,280.85-388,166.93-153,955.33

Finding the Fourth Proportional to 281,280.85, 388,166.93 and 153,955.33

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Solution

The fourth proportional to 281,280.85, 388,166.93 and 153,955.33 is: 212,458.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,280.85 : 388,166.93 = 153,955.33 : x
  2. Step 2: Convert to fraction form
    281,280.85/388,166.93 = 153,955.33/x
  3. Step 3: Cross multiply
    281,280.85x = 388,166.93 × 153,955.33
  4. Step 4: Simplify right side
    281,280.85x = 59,760,367,033.46
  5. Step 5: Solve for x
    x = 59,760,367,033.46/281,280.85
  6. Step 6: Final answer
    x = 212,458.00

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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.