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Finding the Fourth Proportional to 308,281.30, 462,141.70 and 118,620.70

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Solution

The fourth proportional to 308,281.30, 462,141.70 and 118,620.70 is: 177,823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,281.30 : 462,141.70 = 118,620.70 : x
  2. Step 2: Convert to fraction form
    308,281.30/462,141.70 = 118,620.70/x
  3. Step 3: Cross multiply
    308,281.30x = 462,141.70 × 118,620.70
  4. Step 4: Simplify right side
    308,281.30x = 54,819,571,953.19
  5. Step 5: Solve for x
    x = 54,819,571,953.19/308,281.30
  6. Step 6: Final answer
    x = 177,823.22

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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.