Home / 354,436.20-531,500.70-144,004.20

Finding the Fourth Proportional to 354,436.20, 531,500.70 and 144,004.20

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Solution

The fourth proportional to 354,436.20, 531,500.70 and 144,004.20 is: 215,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,436.20 : 531,500.70 = 144,004.20 : x
  2. Step 2: Convert to fraction form
    354,436.20/531,500.70 = 144,004.20/x
  3. Step 3: Cross multiply
    354,436.20x = 531,500.70 × 144,004.20
  4. Step 4: Simplify right side
    354,436.20x = 76,538,333,102.94
  5. Step 5: Solve for x
    x = 76,538,333,102.94/354,436.20
  6. Step 6: Final answer
    x = 215,943.89

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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.