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Finding the Fourth Proportional to 316,082.76, 436,189.96 and 180,124.80

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Solution

The fourth proportional to 316,082.76, 436,189.96 and 180,124.80 is: 248,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,082.76 : 436,189.96 = 180,124.80 : x
  2. Step 2: Convert to fraction form
    316,082.76/436,189.96 = 180,124.80/x
  3. Step 3: Cross multiply
    316,082.76x = 436,189.96 × 180,124.80
  4. Step 4: Simplify right side
    316,082.76x = 78,568,629,307.01
  5. Step 5: Solve for x
    x = 78,568,629,307.01/316,082.76
  6. Step 6: Final answer
    x = 248,569.80

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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.