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Finding the Fourth Proportional to 401,077.95, 601,211.87 and 251,423.14

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Solution

The fourth proportional to 401,077.95, 601,211.87 and 251,423.14 is: 376,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,077.95 : 601,211.87 = 251,423.14 : x
  2. Step 2: Convert to fraction form
    401,077.95/601,211.87 = 251,423.14/x
  3. Step 3: Cross multiply
    401,077.95x = 601,211.87 × 251,423.14
  4. Step 4: Simplify right side
    401,077.95x = 151,158,573,154.61
  5. Step 5: Solve for x
    x = 151,158,573,154.61/401,077.95
  6. Step 6: Final answer
    x = 376,880.79

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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.