Home / 282,427.74-389,757.06-155,106.09

Finding the Fourth Proportional to 282,427.74, 389,757.06 and 155,106.09

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Solution

The fourth proportional to 282,427.74, 389,757.06 and 155,106.09 is: 214,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,427.74 : 389,757.06 = 155,106.09 : x
  2. Step 2: Convert to fraction form
    282,427.74/389,757.06 = 155,106.09/x
  3. Step 3: Cross multiply
    282,427.74x = 389,757.06 × 155,106.09
  4. Step 4: Simplify right side
    282,427.74x = 60,453,693,626.50
  5. Step 5: Solve for x
    x = 60,453,693,626.50/282,427.74
  6. Step 6: Final answer
    x = 214,050.13

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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.