Home / 387,886.26-581,830.10-121,667.41

Finding the Fourth Proportional to 387,886.26, 581,830.10 and 121,667.41

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Solution

The fourth proportional to 387,886.26, 581,830.10 and 121,667.41 is: 182,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,886.26 : 581,830.10 = 121,667.41 : x
  2. Step 2: Convert to fraction form
    387,886.26/581,830.10 = 121,667.41/x
  3. Step 3: Cross multiply
    387,886.26x = 581,830.10 × 121,667.41
  4. Step 4: Simplify right side
    387,886.26x = 70,789,760,176.63
  5. Step 5: Solve for x
    x = 70,789,760,176.63/387,886.26
  6. Step 6: Final answer
    x = 182,501.33

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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.