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Finding the Fourth Proportional to 436,465.86, 654,812.73 and 136,955.94

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Solution

The fourth proportional to 436,465.86, 654,812.73 and 136,955.94 is: 205,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,465.86 : 654,812.73 = 136,955.94 : x
  2. Step 2: Convert to fraction form
    436,465.86/654,812.73 = 136,955.94/x
  3. Step 3: Cross multiply
    436,465.86x = 654,812.73 × 136,955.94
  4. Step 4: Simplify right side
    436,465.86x = 89,680,492,961.12
  5. Step 5: Solve for x
    x = 89,680,492,961.12/436,465.86
  6. Step 6: Final answer
    x = 205,469.66

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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.