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Finding the Fourth Proportional to 308,299.40, 425,449.95 and 180,950.39

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Solution

The fourth proportional to 308,299.40, 425,449.95 and 180,950.39 is: 249,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.40 : 425,449.95 = 180,950.39 : x
  2. Step 2: Convert to fraction form
    308,299.40/425,449.95 = 180,950.39/x
  3. Step 3: Cross multiply
    308,299.40x = 425,449.95 × 180,950.39
  4. Step 4: Simplify right side
    308,299.40x = 76,985,334,377.98
  5. Step 5: Solve for x
    x = 76,985,334,377.98/308,299.40
  6. Step 6: Final answer
    x = 249,709.65

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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.