Home / 435,765.39-653,685.74-120,222.30

Finding the Fourth Proportional to 435,765.39, 653,685.74 and 120,222.30

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Solution

The fourth proportional to 435,765.39, 653,685.74 and 120,222.30 is: 180,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,765.39 : 653,685.74 = 120,222.30 : x
  2. Step 2: Convert to fraction form
    435,765.39/653,685.74 = 120,222.30/x
  3. Step 3: Cross multiply
    435,765.39x = 653,685.74 × 120,222.30
  4. Step 4: Simplify right side
    435,765.39x = 78,587,603,140.00
  5. Step 5: Solve for x
    x = 78,587,603,140.00/435,765.39
  6. Step 6: Final answer
    x = 180,343.84

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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.