Home / 308,006.15-462,063.89-139,519.67

Finding the Fourth Proportional to 308,006.15, 462,063.89 and 139,519.67

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Solution

The fourth proportional to 308,006.15, 462,063.89 and 139,519.67 is: 209,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,006.15 : 462,063.89 = 139,519.67 : x
  2. Step 2: Convert to fraction form
    308,006.15/462,063.89 = 139,519.67/x
  3. Step 3: Cross multiply
    308,006.15x = 462,063.89 × 139,519.67
  4. Step 4: Simplify right side
    308,006.15x = 64,466,999,490.20
  5. Step 5: Solve for x
    x = 64,466,999,490.20/308,006.15
  6. Step 6: Final answer
    x = 209,304.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.