Home / 393,914.20-591,017.10-157,426.60

Finding the Fourth Proportional to 393,914.20, 591,017.10 and 157,426.60

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Solution

The fourth proportional to 393,914.20, 591,017.10 and 157,426.60 is: 236,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,914.20 : 591,017.10 = 157,426.60 : x
  2. Step 2: Convert to fraction form
    393,914.20/591,017.10 = 157,426.60/x
  3. Step 3: Cross multiply
    393,914.20x = 591,017.10 × 157,426.60
  4. Step 4: Simplify right side
    393,914.20x = 93,041,812,594.86
  5. Step 5: Solve for x
    x = 93,041,812,594.86/393,914.20
  6. Step 6: Final answer
    x = 236,198.17

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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.