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Finding the Fourth Proportional to 329,231.40, 493,847.10 and 79,913.40

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Solution

The fourth proportional to 329,231.40, 493,847.10 and 79,913.40 is: 119,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,231.40 : 493,847.10 = 79,913.40 : x
  2. Step 2: Convert to fraction form
    329,231.40/493,847.10 = 79,913.40/x
  3. Step 3: Cross multiply
    329,231.40x = 493,847.10 × 79,913.40
  4. Step 4: Simplify right side
    329,231.40x = 39,465,000,841.14
  5. Step 5: Solve for x
    x = 39,465,000,841.14/329,231.40
  6. Step 6: Final answer
    x = 119,870.10

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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.