Home / 219,721.12-302,672.84-187,350.38

Finding the Fourth Proportional to 219,721.12, 302,672.84 and 187,350.38

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Solution

The fourth proportional to 219,721.12, 302,672.84 and 187,350.38 is: 258,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,721.12 : 302,672.84 = 187,350.38 : x
  2. Step 2: Convert to fraction form
    219,721.12/302,672.84 = 187,350.38/x
  3. Step 3: Cross multiply
    219,721.12x = 302,672.84 × 187,350.38
  4. Step 4: Simplify right side
    219,721.12x = 56,705,871,409.61
  5. Step 5: Solve for x
    x = 56,705,871,409.61/219,721.12
  6. Step 6: Final answer
    x = 258,081.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.