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Finding the Fourth Proportional to 245,957.40, 369,108.90 and 105,816.60

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Solution

The fourth proportional to 245,957.40, 369,108.90 and 105,816.60 is: 158,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,957.40 : 369,108.90 = 105,816.60 : x
  2. Step 2: Convert to fraction form
    245,957.40/369,108.90 = 105,816.60/x
  3. Step 3: Cross multiply
    245,957.40x = 369,108.90 × 105,816.60
  4. Step 4: Simplify right side
    245,957.40x = 39,057,848,827.74
  5. Step 5: Solve for x
    x = 39,057,848,827.74/245,957.40
  6. Step 6: Final answer
    x = 158,799.24

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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.