Home / 314,748.11-434,338.78-178,781.64

Finding the Fourth Proportional to 314,748.11, 434,338.78 and 178,781.64

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Solution

The fourth proportional to 314,748.11, 434,338.78 and 178,781.64 is: 246,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,748.11 : 434,338.78 = 178,781.64 : x
  2. Step 2: Convert to fraction form
    314,748.11/434,338.78 = 178,781.64/x
  3. Step 3: Cross multiply
    314,748.11x = 434,338.78 × 178,781.64
  4. Step 4: Simplify right side
    314,748.11x = 77,651,799,404.00
  5. Step 5: Solve for x
    x = 77,651,799,404.00/314,748.11
  6. Step 6: Final answer
    x = 246,710.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.