Home / 213,548.40-319,885.20-108,426.60

Finding the Fourth Proportional to 213,548.40, 319,885.20 and 108,426.60

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Solution

The fourth proportional to 213,548.40, 319,885.20 and 108,426.60 is: 162,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,548.40 : 319,885.20 = 108,426.60 : x
  2. Step 2: Convert to fraction form
    213,548.40/319,885.20 = 108,426.60/x
  3. Step 3: Cross multiply
    213,548.40x = 319,885.20 × 108,426.60
  4. Step 4: Simplify right side
    213,548.40x = 34,684,064,626.32
  5. Step 5: Solve for x
    x = 34,684,064,626.32/213,548.40
  6. Step 6: Final answer
    x = 162,417.82

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1.5x scale

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.