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Finding the Fourth Proportional to 251,980.90, 378,117.15 and 94,225.30

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Solution

The fourth proportional to 251,980.90, 378,117.15 and 94,225.30 is: 141,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,980.90 : 378,117.15 = 94,225.30 : x
  2. Step 2: Convert to fraction form
    251,980.90/378,117.15 = 94,225.30/x
  3. Step 3: Cross multiply
    251,980.90x = 378,117.15 × 94,225.30
  4. Step 4: Simplify right side
    251,980.90x = 35,628,201,893.90
  5. Step 5: Solve for x
    x = 35,628,201,893.90/251,980.90
  6. Step 6: Final answer
    x = 141,392.47

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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.