Home / 311,908.50-430,433.73-168,668.55

Finding the Fourth Proportional to 311,908.50, 430,433.73 and 168,668.55

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Solution

The fourth proportional to 311,908.50, 430,433.73 and 168,668.55 is: 232,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,908.50 : 430,433.73 = 168,668.55 : x
  2. Step 2: Convert to fraction form
    311,908.50/430,433.73 = 168,668.55/x
  3. Step 3: Cross multiply
    311,908.50x = 430,433.73 × 168,668.55
  4. Step 4: Simplify right side
    311,908.50x = 72,600,633,110.19
  5. Step 5: Solve for x
    x = 72,600,633,110.19/311,908.50
  6. Step 6: Final answer
    x = 232,762.60

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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.