Home / 289,050.30-433,381.05-154,136.70

Finding the Fourth Proportional to 289,050.30, 433,381.05 and 154,136.70

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Solution

The fourth proportional to 289,050.30, 433,381.05 and 154,136.70 is: 231,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,050.30 : 433,381.05 = 154,136.70 : x
  2. Step 2: Convert to fraction form
    289,050.30/433,381.05 = 154,136.70/x
  3. Step 3: Cross multiply
    289,050.30x = 433,381.05 × 154,136.70
  4. Step 4: Simplify right side
    289,050.30x = 66,799,924,889.54
  5. Step 5: Solve for x
    x = 66,799,924,889.54/289,050.30
  6. Step 6: Final answer
    x = 231,101.39

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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.