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Finding the Fourth Proportional to 177,472.62, 245,171.31 and 153,557.78

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Solution

The fourth proportional to 177,472.62, 245,171.31 and 153,557.78 is: 212,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,472.62 : 245,171.31 = 153,557.78 : x
  2. Step 2: Convert to fraction form
    177,472.62/245,171.31 = 153,557.78/x
  3. Step 3: Cross multiply
    177,472.62x = 245,171.31 × 153,557.78
  4. Step 4: Simplify right side
    177,472.62x = 37,647,960,281.59
  5. Step 5: Solve for x
    x = 37,647,960,281.59/177,472.62
  6. Step 6: Final answer
    x = 212,133.91

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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.