Home / 659,443.20-989,146.26-210,191.00

Finding the Fourth Proportional to 659,443.20, 989,146.26 and 210,191.00

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Solution

The fourth proportional to 659,443.20, 989,146.26 and 210,191.00 is: 315,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,443.20 : 989,146.26 = 210,191.00 : x
  2. Step 2: Convert to fraction form
    659,443.20/989,146.26 = 210,191.00/x
  3. Step 3: Cross multiply
    659,443.20x = 989,146.26 × 210,191.00
  4. Step 4: Simplify right side
    659,443.20x = 207,909,636,589.93
  5. Step 5: Solve for x
    x = 207,909,636,589.93/659,443.20
  6. Step 6: Final answer
    x = 315,280.58

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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.