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Finding the Fourth Proportional to 318,234.72, 439,148.88 and 175,000.80

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Solution

The fourth proportional to 318,234.72, 439,148.88 and 175,000.80 is: 241,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,234.72 : 439,148.88 = 175,000.80 : x
  2. Step 2: Convert to fraction form
    318,234.72/439,148.88 = 175,000.80/x
  3. Step 3: Cross multiply
    318,234.72x = 439,148.88 × 175,000.80
  4. Step 4: Simplify right side
    318,234.72x = 76,851,405,319.10
  5. Step 5: Solve for x
    x = 76,851,405,319.10/318,234.72
  6. Step 6: Final answer
    x = 241,492.84

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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.