Home / 259,555.84-389,334.12-72,567.16

Finding the Fourth Proportional to 259,555.84, 389,334.12 and 72,567.16

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Solution

The fourth proportional to 259,555.84, 389,334.12 and 72,567.16 is: 108,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,555.84 : 389,334.12 = 72,567.16 : x
  2. Step 2: Convert to fraction form
    259,555.84/389,334.12 = 72,567.16/x
  3. Step 3: Cross multiply
    259,555.84x = 389,334.12 × 72,567.16
  4. Step 4: Simplify right side
    259,555.84x = 28,252,871,379.50
  5. Step 5: Solve for x
    x = 28,252,871,379.50/259,555.84
  6. Step 6: Final answer
    x = 108,850.84

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1.5x scale

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.