Home / 350,405.12-525,744.03-140,103.20

Finding the Fourth Proportional to 350,405.12, 525,744.03 and 140,103.20

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Solution

The fourth proportional to 350,405.12, 525,744.03 and 140,103.20 is: 210,209.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,405.12 : 525,744.03 = 140,103.20 : x
  2. Step 2: Convert to fraction form
    350,405.12/525,744.03 = 140,103.20/x
  3. Step 3: Cross multiply
    350,405.12x = 525,744.03 × 140,103.20
  4. Step 4: Simplify right side
    350,405.12x = 73,658,422,823.64
  5. Step 5: Solve for x
    x = 73,658,422,823.64/350,405.12
  6. Step 6: Final answer
    x = 210,209.32

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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.