Home / 289,021.74-432,971.73-212,982.30

Finding the Fourth Proportional to 289,021.74, 432,971.73 and 212,982.30

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Solution

The fourth proportional to 289,021.74, 432,971.73 and 212,982.30 is: 319,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,021.74 : 432,971.73 = 212,982.30 : x
  2. Step 2: Convert to fraction form
    289,021.74/432,971.73 = 212,982.30/x
  3. Step 3: Cross multiply
    289,021.74x = 432,971.73 × 212,982.30
  4. Step 4: Simplify right side
    289,021.74x = 92,215,314,890.38
  5. Step 5: Solve for x
    x = 92,215,314,890.38/289,021.74
  6. Step 6: Final answer
    x = 319,060.13

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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.