Home / 371,368.38-557,090.33-128,177.81

Finding the Fourth Proportional to 371,368.38, 557,090.33 and 128,177.81

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Solution

The fourth proportional to 371,368.38, 557,090.33 and 128,177.81 is: 192,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,368.38 : 557,090.33 = 128,177.81 : x
  2. Step 2: Convert to fraction form
    371,368.38/557,090.33 = 128,177.81/x
  3. Step 3: Cross multiply
    371,368.38x = 557,090.33 × 128,177.81
  4. Step 4: Simplify right side
    371,368.38x = 71,406,617,134.33
  5. Step 5: Solve for x
    x = 71,406,617,134.33/371,368.38
  6. Step 6: Final answer
    x = 192,279.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.