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Finding the Fourth Proportional to 436,946.88, 655,810.92 and 223,860

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Solution

The fourth proportional to 436,946.88, 655,810.92 and 223,860 is: 335,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,946.88 : 655,810.92 = 223,860 : x
  2. Step 2: Convert to fraction form
    436,946.88/655,810.92 = 223,860/x
  3. Step 3: Cross multiply
    436,946.88x = 655,810.92 × 223,860
  4. Step 4: Simplify right side
    436,946.88x = 146,809,832,551.20
  5. Step 5: Solve for x
    x = 146,809,832,551.20/436,946.88
  6. Step 6: Final answer
    x = 335,990.12

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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.