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Finding the Fourth Proportional to 369,830.70, 554,703 and 99,946.05

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Solution

The fourth proportional to 369,830.70, 554,703 and 99,946.05 is: 149,907.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,830.70 : 554,703 = 99,946.05 : x
  2. Step 2: Convert to fraction form
    369,830.70/554,703 = 99,946.05/x
  3. Step 3: Cross multiply
    369,830.70x = 554,703 × 99,946.05
  4. Step 4: Simplify right side
    369,830.70x = 55,440,373,773.15
  5. Step 5: Solve for x
    x = 55,440,373,773.15/369,830.70
  6. Step 6: Final answer
    x = 149,907.44

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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.