Home / 229,867.42-317,143.20-139,194.40

Finding the Fourth Proportional to 229,867.42, 317,143.20 and 139,194.40

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Solution

The fourth proportional to 229,867.42, 317,143.20 and 139,194.40 is: 192,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,867.42 : 317,143.20 = 139,194.40 : x
  2. Step 2: Convert to fraction form
    229,867.42/317,143.20 = 139,194.40/x
  3. Step 3: Cross multiply
    229,867.42x = 317,143.20 × 139,194.40
  4. Step 4: Simplify right side
    229,867.42x = 44,144,557,438.08
  5. Step 5: Solve for x
    x = 44,144,557,438.08/229,867.42
  6. Step 6: Final answer
    x = 192,043.56

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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.