Home / 393,977.40-590,966.10-144,756.60

Finding the Fourth Proportional to 393,977.40, 590,966.10 and 144,756.60

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Solution

The fourth proportional to 393,977.40, 590,966.10 and 144,756.60 is: 217,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,977.40 : 590,966.10 = 144,756.60 : x
  2. Step 2: Convert to fraction form
    393,977.40/590,966.10 = 144,756.60/x
  3. Step 3: Cross multiply
    393,977.40x = 590,966.10 × 144,756.60
  4. Step 4: Simplify right side
    393,977.40x = 85,546,243,351.26
  5. Step 5: Solve for x
    x = 85,546,243,351.26/393,977.40
  6. Step 6: Final answer
    x = 217,134.90

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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.