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Finding the Fourth Proportional to 316,538.13, 436,847.58 and 180,540.90

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Solution

The fourth proportional to 316,538.13, 436,847.58 and 180,540.90 is: 249,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,538.13 : 436,847.58 = 180,540.90 : x
  2. Step 2: Convert to fraction form
    316,538.13/436,847.58 = 180,540.90/x
  3. Step 3: Cross multiply
    316,538.13x = 436,847.58 × 180,540.90
  4. Step 4: Simplify right side
    316,538.13x = 78,868,855,256.02
  5. Step 5: Solve for x
    x = 78,868,855,256.02/316,538.13
  6. Step 6: Final answer
    x = 249,160.68

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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.