Home / 282,448.06-389,781.38-155,123.63

Finding the Fourth Proportional to 282,448.06, 389,781.38 and 155,123.63

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Solution

The fourth proportional to 282,448.06, 389,781.38 and 155,123.63 is: 214,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,448.06 : 389,781.38 = 155,123.63 : x
  2. Step 2: Convert to fraction form
    282,448.06/389,781.38 = 155,123.63/x
  3. Step 3: Cross multiply
    282,448.06x = 389,781.38 × 155,123.63
  4. Step 4: Simplify right side
    282,448.06x = 60,464,301,796.39
  5. Step 5: Solve for x
    x = 60,464,301,796.39/282,448.06
  6. Step 6: Final answer
    x = 214,072.29

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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.