Home / 354,631.80-531,947.70-133,102.20

Finding the Fourth Proportional to 354,631.80, 531,947.70 and 133,102.20

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Solution

The fourth proportional to 354,631.80, 531,947.70 and 133,102.20 is: 199,653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,631.80 : 531,947.70 = 133,102.20 : x
  2. Step 2: Convert to fraction form
    354,631.80/531,947.70 = 133,102.20/x
  3. Step 3: Cross multiply
    354,631.80x = 531,947.70 × 133,102.20
  4. Step 4: Simplify right side
    354,631.80x = 70,803,409,154.94
  5. Step 5: Solve for x
    x = 70,803,409,154.94/354,631.80
  6. Step 6: Final answer
    x = 199,653.30

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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.