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Finding the Fourth Proportional to 192,510.49, 288,785.53 and 72,668.38

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Solution

The fourth proportional to 192,510.49, 288,785.53 and 72,668.38 is: 109,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,510.49 : 288,785.53 = 72,668.38 : x
  2. Step 2: Convert to fraction form
    192,510.49/288,785.53 = 72,668.38/x
  3. Step 3: Cross multiply
    192,510.49x = 288,785.53 × 72,668.38
  4. Step 4: Simplify right side
    192,510.49x = 20,985,575,728.91
  5. Step 5: Solve for x
    x = 20,985,575,728.91/192,510.49
  6. Step 6: Final answer
    x = 109,010.04

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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.