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Finding the Fourth Proportional to 328,668.10, 492,714.15 and 223,144.90

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Solution

The fourth proportional to 328,668.10, 492,714.15 and 223,144.90 is: 334,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,668.10 : 492,714.15 = 223,144.90 : x
  2. Step 2: Convert to fraction form
    328,668.10/492,714.15 = 223,144.90/x
  3. Step 3: Cross multiply
    328,668.10x = 492,714.15 × 223,144.90
  4. Step 4: Simplify right side
    328,668.10x = 109,946,649,730.34
  5. Step 5: Solve for x
    x = 109,946,649,730.34/328,668.10
  6. Step 6: Final answer
    x = 334,521.82

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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.