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Finding the Fourth Proportional to 318,089.85, 438,964.90 and 182,125.88

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Solution

The fourth proportional to 318,089.85, 438,964.90 and 182,125.88 is: 251,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,089.85 : 438,964.90 = 182,125.88 : x
  2. Step 2: Convert to fraction form
    318,089.85/438,964.90 = 182,125.88/x
  3. Step 3: Cross multiply
    318,089.85x = 438,964.90 × 182,125.88
  4. Step 4: Simplify right side
    318,089.85x = 79,946,865,596.16
  5. Step 5: Solve for x
    x = 79,946,865,596.16/318,089.85
  6. Step 6: Final answer
    x = 251,334.23

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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.