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Finding the Fourth Proportional to 369,702.40, 554,553.60 and 133,052.80

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Solution

The fourth proportional to 369,702.40, 554,553.60 and 133,052.80 is: 199,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,702.40 : 554,553.60 = 133,052.80 : x
  2. Step 2: Convert to fraction form
    369,702.40/554,553.60 = 133,052.80/x
  3. Step 3: Cross multiply
    369,702.40x = 554,553.60 × 133,052.80
  4. Step 4: Simplify right side
    369,702.40x = 73,784,909,230.08
  5. Step 5: Solve for x
    x = 73,784,909,230.08/369,702.40
  6. Step 6: Final answer
    x = 199,579.20

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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.