Home / 213,445.80-319,823.10-134,418.60

Finding the Fourth Proportional to 213,445.80, 319,823.10 and 134,418.60

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Solution

The fourth proportional to 213,445.80, 319,823.10 and 134,418.60 is: 201,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,445.80 : 319,823.10 = 134,418.60 : x
  2. Step 2: Convert to fraction form
    213,445.80/319,823.10 = 134,418.60/x
  3. Step 3: Cross multiply
    213,445.80x = 319,823.10 × 134,418.60
  4. Step 4: Simplify right side
    213,445.80x = 42,990,173,349.66
  5. Step 5: Solve for x
    x = 42,990,173,349.66/213,445.80
  6. Step 6: Final answer
    x = 201,410.26

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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.