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Finding the Fourth Proportional to 611,077.95, 916,670.25 and 251,270.69

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Solution

The fourth proportional to 611,077.95, 916,670.25 and 251,270.69 is: 376,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,077.95 : 916,670.25 = 251,270.69 : x
  2. Step 2: Convert to fraction form
    611,077.95/916,670.25 = 251,270.69/x
  3. Step 3: Cross multiply
    611,077.95x = 916,670.25 × 251,270.69
  4. Step 4: Simplify right side
    611,077.95x = 230,332,361,636.62
  5. Step 5: Solve for x
    x = 230,332,361,636.62/611,077.95
  6. Step 6: Final answer
    x = 376,927.95

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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.