Home / 345,116.57-476,494.65-216,106.80

Finding the Fourth Proportional to 345,116.57, 476,494.65 and 216,106.80

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Solution

The fourth proportional to 345,116.57, 476,494.65 and 216,106.80 is: 298,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,116.57 : 476,494.65 = 216,106.80 : x
  2. Step 2: Convert to fraction form
    345,116.57/476,494.65 = 216,106.80/x
  3. Step 3: Cross multiply
    345,116.57x = 476,494.65 × 216,106.80
  4. Step 4: Simplify right side
    345,116.57x = 102,973,734,028.62
  5. Step 5: Solve for x
    x = 102,973,734,028.62/345,116.57
  6. Step 6: Final answer
    x = 298,373.78

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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.