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Finding the Fourth Proportional to 515,349.84, 773,077.68 and 178,389.96

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Solution

The fourth proportional to 515,349.84, 773,077.68 and 178,389.96 is: 267,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,349.84 : 773,077.68 = 178,389.96 : x
  2. Step 2: Convert to fraction form
    515,349.84/773,077.68 = 178,389.96/x
  3. Step 3: Cross multiply
    515,349.84x = 773,077.68 × 178,389.96
  4. Step 4: Simplify right side
    515,349.84x = 137,909,296,412.09
  5. Step 5: Solve for x
    x = 137,909,296,412.09/515,349.84
  6. Step 6: Final answer
    x = 267,603.26

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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.