Home / 282,171.18-389,407.44-154,851.36

Finding the Fourth Proportional to 282,171.18, 389,407.44 and 154,851.36

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Solution

The fourth proportional to 282,171.18, 389,407.44 and 154,851.36 is: 213,701.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,171.18 : 389,407.44 = 154,851.36 : x
  2. Step 2: Convert to fraction form
    282,171.18/389,407.44 = 154,851.36/x
  3. Step 3: Cross multiply
    282,171.18x = 389,407.44 × 154,851.36
  4. Step 4: Simplify right side
    282,171.18x = 60,300,271,678.12
  5. Step 5: Solve for x
    x = 60,300,271,678.12/282,171.18
  6. Step 6: Final answer
    x = 213,701.03

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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.