Home / 238,574.21-329,236.49-131,148.77

Finding the Fourth Proportional to 238,574.21, 329,236.49 and 131,148.77

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Solution

The fourth proportional to 238,574.21, 329,236.49 and 131,148.77 is: 180,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,574.21 : 329,236.49 = 131,148.77 : x
  2. Step 2: Convert to fraction form
    238,574.21/329,236.49 = 131,148.77/x
  3. Step 3: Cross multiply
    238,574.21x = 329,236.49 × 131,148.77
  4. Step 4: Simplify right side
    238,574.21x = 43,178,960,702.62
  5. Step 5: Solve for x
    x = 43,178,960,702.62/238,574.21
  6. Step 6: Final answer
    x = 180,987.55

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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.