Home / 288,979.80-433,178.10-131,321.40

Finding the Fourth Proportional to 288,979.80, 433,178.10 and 131,321.40

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Solution

The fourth proportional to 288,979.80, 433,178.10 and 131,321.40 is: 196,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,979.80 : 433,178.10 = 131,321.40 : x
  2. Step 2: Convert to fraction form
    288,979.80/433,178.10 = 131,321.40/x
  3. Step 3: Cross multiply
    288,979.80x = 433,178.10 × 131,321.40
  4. Step 4: Simplify right side
    288,979.80x = 56,885,554,541.34
  5. Step 5: Solve for x
    x = 56,885,554,541.34/288,979.80
  6. Step 6: Final answer
    x = 196,849.59

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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.