Home / 288,631.80-432,947.70-131,167.80

Finding the Fourth Proportional to 288,631.80, 432,947.70 and 131,167.80

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Solution

The fourth proportional to 288,631.80, 432,947.70 and 131,167.80 is: 196,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,631.80 : 432,947.70 = 131,167.80 : x
  2. Step 2: Convert to fraction form
    288,631.80/432,947.70 = 131,167.80/x
  3. Step 3: Cross multiply
    288,631.80x = 432,947.70 × 131,167.80
  4. Step 4: Simplify right side
    288,631.80x = 56,788,797,324.06
  5. Step 5: Solve for x
    x = 56,788,797,324.06/288,631.80
  6. Step 6: Final answer
    x = 196,751.70

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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.