Home / 217,867.40-326,801.10-143,217.80

Finding the Fourth Proportional to 217,867.40, 326,801.10 and 143,217.80

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Solution

The fourth proportional to 217,867.40, 326,801.10 and 143,217.80 is: 214,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,867.40 : 326,801.10 = 143,217.80 : x
  2. Step 2: Convert to fraction form
    217,867.40/326,801.10 = 143,217.80/x
  3. Step 3: Cross multiply
    217,867.40x = 326,801.10 × 143,217.80
  4. Step 4: Simplify right side
    217,867.40x = 46,803,734,579.58
  5. Step 5: Solve for x
    x = 46,803,734,579.58/217,867.40
  6. Step 6: Final answer
    x = 214,826.70

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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.