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Finding the Fourth Proportional to 342,406.12, 512,860.20 and 173,635.60

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Solution

The fourth proportional to 342,406.12, 512,860.20 and 173,635.60 is: 260,073.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,406.12 : 512,860.20 = 173,635.60 : x
  2. Step 2: Convert to fraction form
    342,406.12/512,860.20 = 173,635.60/x
  3. Step 3: Cross multiply
    342,406.12x = 512,860.20 × 173,635.60
  4. Step 4: Simplify right side
    342,406.12x = 89,050,788,543.12
  5. Step 5: Solve for x
    x = 89,050,788,543.12/342,406.12
  6. Step 6: Final answer
    x = 260,073.59

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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.