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Finding the Fourth Proportional to 342,005.99, 513,064.11 and 105,348.44

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Solution

The fourth proportional to 342,005.99, 513,064.11 and 105,348.44 is: 158,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,005.99 : 513,064.11 = 105,348.44 : x
  2. Step 2: Convert to fraction form
    342,005.99/513,064.11 = 105,348.44/x
  3. Step 3: Cross multiply
    342,005.99x = 513,064.11 × 105,348.44
  4. Step 4: Simplify right side
    342,005.99x = 54,050,503,608.49
  5. Step 5: Solve for x
    x = 54,050,503,608.49/342,005.99
  6. Step 6: Final answer
    x = 158,039.64

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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.