Home / 282,210.36-389,449.98-154,886.28

Finding the Fourth Proportional to 282,210.36, 389,449.98 and 154,886.28

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Solution

The fourth proportional to 282,210.36, 389,449.98 and 154,886.28 is: 213,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,210.36 : 389,449.98 = 154,886.28 : x
  2. Step 2: Convert to fraction form
    282,210.36/389,449.98 = 154,886.28/x
  3. Step 3: Cross multiply
    282,210.36x = 389,449.98 × 154,886.28
  4. Step 4: Simplify right side
    282,210.36x = 60,320,458,648.27
  5. Step 5: Solve for x
    x = 60,320,458,648.27/282,210.36
  6. Step 6: Final answer
    x = 213,742.89

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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.