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Finding the Fourth Proportional to 370,511, 554,878.44 and 190,121.72

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Solution

The fourth proportional to 370,511, 554,878.44 and 190,121.72 is: 284,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,511 : 554,878.44 = 190,121.72 : x
  2. Step 2: Convert to fraction form
    370,511/554,878.44 = 190,121.72/x
  3. Step 3: Cross multiply
    370,511x = 554,878.44 × 190,121.72
  4. Step 4: Simplify right side
    370,511x = 105,494,443,403.72
  5. Step 5: Solve for x
    x = 105,494,443,403.72/370,511
  6. Step 6: Final answer
    x = 284,726.89

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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.