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Finding the Fourth Proportional to 371,290.50, 512,338.28 and 207,924.21

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Solution

The fourth proportional to 371,290.50, 512,338.28 and 207,924.21 is: 286,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,290.50 : 512,338.28 = 207,924.21 : x
  2. Step 2: Convert to fraction form
    371,290.50/512,338.28 = 207,924.21/x
  3. Step 3: Cross multiply
    371,290.50x = 512,338.28 × 207,924.21
  4. Step 4: Simplify right side
    371,290.50x = 106,527,531,082.14
  5. Step 5: Solve for x
    x = 106,527,531,082.14/371,290.50
  6. Step 6: Final answer
    x = 286,911.55

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1.5x scale

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.