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Finding the Fourth Proportional to 308,299.65, 425,450.30 and 180,950.64

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Solution

The fourth proportional to 308,299.65, 425,450.30 and 180,950.64 is: 249,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.65 : 425,450.30 = 180,950.64 : x
  2. Step 2: Convert to fraction form
    308,299.65/425,450.30 = 180,950.64/x
  3. Step 3: Cross multiply
    308,299.65x = 425,450.30 × 180,950.64
  4. Step 4: Simplify right side
    308,299.65x = 76,985,501,041.19
  5. Step 5: Solve for x
    x = 76,985,501,041.19/308,299.65
  6. Step 6: Final answer
    x = 249,709.99

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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.