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Finding the Fourth Proportional to 251,133.90, 376,749.45 and 73,646.70

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Solution

The fourth proportional to 251,133.90, 376,749.45 and 73,646.70 is: 110,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,133.90 : 376,749.45 = 73,646.70 : x
  2. Step 2: Convert to fraction form
    251,133.90/376,749.45 = 73,646.70/x
  3. Step 3: Cross multiply
    251,133.90x = 376,749.45 × 73,646.70
  4. Step 4: Simplify right side
    251,133.90x = 27,746,353,719.32
  5. Step 5: Solve for x
    x = 27,746,353,719.32/251,133.90
  6. Step 6: Final answer
    x = 110,484.30

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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.