Home / 321,569.48-443,766.90-178,342.76

Finding the Fourth Proportional to 321,569.48, 443,766.90 and 178,342.76

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Solution

The fourth proportional to 321,569.48, 443,766.90 and 178,342.76 is: 246,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,569.48 : 443,766.90 = 178,342.76 : x
  2. Step 2: Convert to fraction form
    321,569.48/443,766.90 = 178,342.76/x
  3. Step 3: Cross multiply
    321,569.48x = 443,766.90 × 178,342.76
  4. Step 4: Simplify right side
    321,569.48x = 79,142,613,742.64
  5. Step 5: Solve for x
    x = 79,142,613,742.64/321,569.48
  6. Step 6: Final answer
    x = 246,113.57

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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.