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Finding the Fourth Proportional to 308,370.84, 425,528.28 and 187,495.35

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Solution

The fourth proportional to 308,370.84, 425,528.28 and 187,495.35 is: 258,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,370.84 : 425,528.28 = 187,495.35 : x
  2. Step 2: Convert to fraction form
    308,370.84/425,528.28 = 187,495.35/x
  3. Step 3: Cross multiply
    308,370.84x = 425,528.28 × 187,495.35
  4. Step 4: Simplify right side
    308,370.84x = 79,784,573,793.50
  5. Step 5: Solve for x
    x = 79,784,573,793.50/308,370.84
  6. Step 6: Final answer
    x = 258,729.31

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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.