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Finding the Fourth Proportional to 494,878.08, 742,390.20 and 179,261.40

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Solution

The fourth proportional to 494,878.08, 742,390.20 and 179,261.40 is: 268,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,878.08 : 742,390.20 = 179,261.40 : x
  2. Step 2: Convert to fraction form
    494,878.08/742,390.20 = 179,261.40/x
  3. Step 3: Cross multiply
    494,878.08x = 742,390.20 × 179,261.40
  4. Step 4: Simplify right side
    494,878.08x = 133,081,906,598.28
  5. Step 5: Solve for x
    x = 133,081,906,598.28/494,878.08
  6. Step 6: Final answer
    x = 268,918.57

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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.