Home / 289,167.20-433,667.40-99,619.88

Finding the Fourth Proportional to 289,167.20, 433,667.40 and 99,619.88

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Solution

The fourth proportional to 289,167.20, 433,667.40 and 99,619.88 is: 149,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,167.20 : 433,667.40 = 99,619.88 : x
  2. Step 2: Convert to fraction form
    289,167.20/433,667.40 = 99,619.88/x
  3. Step 3: Cross multiply
    289,167.20x = 433,667.40 × 99,619.88
  4. Step 4: Simplify right side
    289,167.20x = 43,201,894,347.91
  5. Step 5: Solve for x
    x = 43,201,894,347.91/289,167.20
  6. Step 6: Final answer
    x = 149,401.09

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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.