Home / 345,269.71-476,496.15-209,309.39

Finding the Fourth Proportional to 345,269.71, 476,496.15 and 209,309.39

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Solution

The fourth proportional to 345,269.71, 476,496.15 and 209,309.39 is: 288,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,269.71 : 476,496.15 = 209,309.39 : x
  2. Step 2: Convert to fraction form
    345,269.71/476,496.15 = 209,309.39/x
  3. Step 3: Cross multiply
    345,269.71x = 476,496.15 × 209,309.39
  4. Step 4: Simplify right side
    345,269.71x = 99,735,117,113.32
  5. Step 5: Solve for x
    x = 99,735,117,113.32/345,269.71
  6. Step 6: Final answer
    x = 288,861.47

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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.