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Finding the Fourth Proportional to 308,840.80, 463,261.20 and 109,167.70

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Solution

The fourth proportional to 308,840.80, 463,261.20 and 109,167.70 is: 163,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,840.80 : 463,261.20 = 109,167.70 : x
  2. Step 2: Convert to fraction form
    308,840.80/463,261.20 = 109,167.70/x
  3. Step 3: Cross multiply
    308,840.80x = 463,261.20 × 109,167.70
  4. Step 4: Simplify right side
    308,840.80x = 50,573,159,703.24
  5. Step 5: Solve for x
    x = 50,573,159,703.24/308,840.80
  6. Step 6: Final answer
    x = 163,751.55

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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.