Home / 434,559.40-651,839.10-135,037.60

Finding the Fourth Proportional to 434,559.40, 651,839.10 and 135,037.60

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Solution

The fourth proportional to 434,559.40, 651,839.10 and 135,037.60 is: 202,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,559.40 : 651,839.10 = 135,037.60 : x
  2. Step 2: Convert to fraction form
    434,559.40/651,839.10 = 135,037.60/x
  3. Step 3: Cross multiply
    434,559.40x = 651,839.10 × 135,037.60
  4. Step 4: Simplify right side
    434,559.40x = 88,022,787,650.16
  5. Step 5: Solve for x
    x = 88,022,787,650.16/434,559.40
  6. Step 6: Final answer
    x = 202,556.40

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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.