Home / 425,426.77-587,081.39-231,836.21

Finding the Fourth Proportional to 425,426.77, 587,081.39 and 231,836.21

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Solution

The fourth proportional to 425,426.77, 587,081.39 and 231,836.21 is: 319,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,426.77 : 587,081.39 = 231,836.21 : x
  2. Step 2: Convert to fraction form
    425,426.77/587,081.39 = 231,836.21/x
  3. Step 3: Cross multiply
    425,426.77x = 587,081.39 × 231,836.21
  4. Step 4: Simplify right side
    425,426.77x = 136,106,722,063.32
  5. Step 5: Solve for x
    x = 136,106,722,063.32/425,426.77
  6. Step 6: Final answer
    x = 319,929.85

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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.