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Finding the Fourth Proportional to 308,380.40, 462,973.45 and 247,623.11

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Solution

The fourth proportional to 308,380.40, 462,973.45 and 247,623.11 is: 371,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,380.40 : 462,973.45 = 247,623.11 : x
  2. Step 2: Convert to fraction form
    308,380.40/462,973.45 = 247,623.11/x
  3. Step 3: Cross multiply
    308,380.40x = 462,973.45 × 247,623.11
  4. Step 4: Simplify right side
    308,380.40x = 114,642,922,602.51
  5. Step 5: Solve for x
    x = 114,642,922,602.51/308,380.40
  6. Step 6: Final answer
    x = 371,758.14

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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.