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Finding the Fourth Proportional to 435,492.38, 653,238.34 and 135,998.64

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Solution

The fourth proportional to 435,492.38, 653,238.34 and 135,998.64 is: 203,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,492.38 : 653,238.34 = 135,998.64 : x
  2. Step 2: Convert to fraction form
    435,492.38/653,238.34 = 135,998.64/x
  3. Step 3: Cross multiply
    435,492.38x = 653,238.34 × 135,998.64
  4. Step 4: Simplify right side
    435,492.38x = 88,839,525,835.86
  5. Step 5: Solve for x
    x = 88,839,525,835.86/435,492.38
  6. Step 6: Final answer
    x = 203,997.89

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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.