Home / 282,149.45-389,365.70-153,087.89

Finding the Fourth Proportional to 282,149.45, 389,365.70 and 153,087.89

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Solution

The fourth proportional to 282,149.45, 389,365.70 and 153,087.89 is: 211,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,149.45 : 389,365.70 = 153,087.89 : x
  2. Step 2: Convert to fraction form
    282,149.45/389,365.70 = 153,087.89/x
  3. Step 3: Cross multiply
    282,149.45x = 389,365.70 × 153,087.89
  4. Step 4: Simplify right side
    282,149.45x = 59,607,171,918.80
  5. Step 5: Solve for x
    x = 59,607,171,918.80/282,149.45
  6. Step 6: Final answer
    x = 211,260.99

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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.