Home / 345,487.57-476,519.06-228,990.35

Finding the Fourth Proportional to 345,487.57, 476,519.06 and 228,990.35

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Solution

The fourth proportional to 345,487.57, 476,519.06 and 228,990.35 is: 315,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,487.57 : 476,519.06 = 228,990.35 : x
  2. Step 2: Convert to fraction form
    345,487.57/476,519.06 = 228,990.35/x
  3. Step 3: Cross multiply
    345,487.57x = 476,519.06 × 228,990.35
  4. Step 4: Simplify right side
    345,487.57x = 109,118,266,331.07
  5. Step 5: Solve for x
    x = 109,118,266,331.07/345,487.57
  6. Step 6: Final answer
    x = 315,838.47

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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.