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Finding the Fourth Proportional to 371,299.55, 512,350.65 and 207,933.21

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Solution

The fourth proportional to 371,299.55, 512,350.65 and 207,933.21 is: 286,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,299.55 : 512,350.65 = 207,933.21 : x
  2. Step 2: Convert to fraction form
    371,299.55/512,350.65 = 207,933.21/x
  3. Step 3: Cross multiply
    371,299.55x = 512,350.65 × 207,933.21
  4. Step 4: Simplify right side
    371,299.55x = 106,534,715,300.09
  5. Step 5: Solve for x
    x = 106,534,715,300.09/371,299.55
  6. Step 6: Final answer
    x = 286,923.90

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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.