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Finding the Fourth Proportional to 251,141.70, 376,712.55 and 84,929.70

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Solution

The fourth proportional to 251,141.70, 376,712.55 and 84,929.70 is: 127,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,141.70 : 376,712.55 = 84,929.70 : x
  2. Step 2: Convert to fraction form
    251,141.70/376,712.55 = 84,929.70/x
  3. Step 3: Cross multiply
    251,141.70x = 376,712.55 × 84,929.70
  4. Step 4: Simplify right side
    251,141.70x = 31,994,083,857.74
  5. Step 5: Solve for x
    x = 31,994,083,857.74/251,141.70
  6. Step 6: Final answer
    x = 127,394.55

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1.5x scale

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.