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Finding the Fourth Proportional to 308,299.90, 425,450.64 and 180,950.89

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Solution

The fourth proportional to 308,299.90, 425,450.64 and 180,950.89 is: 249,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.90 : 425,450.64 = 180,950.89 : x
  2. Step 2: Convert to fraction form
    308,299.90/425,450.64 = 180,950.89/x
  3. Step 3: Cross multiply
    308,299.90x = 425,450.64 × 180,950.89
  4. Step 4: Simplify right side
    308,299.90x = 76,985,669,831.82
  5. Step 5: Solve for x
    x = 76,985,669,831.82/308,299.90
  6. Step 6: Final answer
    x = 249,710.33

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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.