Home / 282,531.96-389,896.74-155,210.22

Finding the Fourth Proportional to 282,531.96, 389,896.74 and 155,210.22

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Solution

The fourth proportional to 282,531.96, 389,896.74 and 155,210.22 is: 214,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,531.96 : 389,896.74 = 155,210.22 : x
  2. Step 2: Convert to fraction form
    282,531.96/389,896.74 = 155,210.22/x
  3. Step 3: Cross multiply
    282,531.96x = 389,896.74 × 155,210.22
  4. Step 4: Simplify right side
    282,531.96x = 60,515,958,792.68
  5. Step 5: Solve for x
    x = 60,515,958,792.68/282,531.96
  6. Step 6: Final answer
    x = 214,191.55

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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.