Home / 439,787.48-659,744.09-140,271.45

Finding the Fourth Proportional to 439,787.48, 659,744.09 and 140,271.45

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Solution

The fourth proportional to 439,787.48, 659,744.09 and 140,271.45 is: 210,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,787.48 : 659,744.09 = 140,271.45 : x
  2. Step 2: Convert to fraction form
    439,787.48/659,744.09 = 140,271.45/x
  3. Step 3: Cross multiply
    439,787.48x = 659,744.09 × 140,271.45
  4. Step 4: Simplify right side
    439,787.48x = 92,543,257,483.85
  5. Step 5: Solve for x
    x = 92,543,257,483.85/439,787.48
  6. Step 6: Final answer
    x = 210,427.22

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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.