Home / 306,859.24-423,344.10-187,696.36

Finding the Fourth Proportional to 306,859.24, 423,344.10 and 187,696.36

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Solution

The fourth proportional to 306,859.24, 423,344.10 and 187,696.36 is: 258,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,859.24 : 423,344.10 = 187,696.36 : x
  2. Step 2: Convert to fraction form
    306,859.24/423,344.10 = 187,696.36/x
  3. Step 3: Cross multiply
    306,859.24x = 423,344.10 × 187,696.36
  4. Step 4: Simplify right side
    306,859.24x = 79,460,146,597.48
  5. Step 5: Solve for x
    x = 79,460,146,597.48/306,859.24
  6. Step 6: Final answer
    x = 258,946.57

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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.