Home / 439,953.12-660,011.76-200,084.40

Finding the Fourth Proportional to 439,953.12, 660,011.76 and 200,084.40

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Solution

The fourth proportional to 439,953.12, 660,011.76 and 200,084.40 is: 300,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,953.12 : 660,011.76 = 200,084.40 : x
  2. Step 2: Convert to fraction form
    439,953.12/660,011.76 = 200,084.40/x
  3. Step 3: Cross multiply
    439,953.12x = 660,011.76 × 200,084.40
  4. Step 4: Simplify right side
    439,953.12x = 132,058,056,992.54
  5. Step 5: Solve for x
    x = 132,058,056,992.54/439,953.12
  6. Step 6: Final answer
    x = 300,163.93

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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.