Home / 289,189.80-433,493.10-131,531.40

Finding the Fourth Proportional to 289,189.80, 433,493.10 and 131,531.40

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Solution

The fourth proportional to 289,189.80, 433,493.10 and 131,531.40 is: 197,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,189.80 : 433,493.10 = 131,531.40 : x
  2. Step 2: Convert to fraction form
    289,189.80/433,493.10 = 131,531.40/x
  3. Step 3: Cross multiply
    289,189.80x = 433,493.10 × 131,531.40
  4. Step 4: Simplify right side
    289,189.80x = 57,017,954,333.34
  5. Step 5: Solve for x
    x = 57,017,954,333.34/289,189.80
  6. Step 6: Final answer
    x = 197,164.47

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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.