Home / 282,540.34-389,901.36-153,478.18

Finding the Fourth Proportional to 282,540.34, 389,901.36 and 153,478.18

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Solution

The fourth proportional to 282,540.34, 389,901.36 and 153,478.18 is: 211,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,540.34 : 389,901.36 = 153,478.18 : x
  2. Step 2: Convert to fraction form
    282,540.34/389,901.36 = 153,478.18/x
  3. Step 3: Cross multiply
    282,540.34x = 389,901.36 × 153,478.18
  4. Step 4: Simplify right side
    282,540.34x = 59,841,351,112.32
  5. Step 5: Solve for x
    x = 59,841,351,112.32/282,540.34
  6. Step 6: Final answer
    x = 211,797.55

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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.