Home / 515,182.90-772,844.70-178,133.05

Finding the Fourth Proportional to 515,182.90, 772,844.70 and 178,133.05

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Solution

The fourth proportional to 515,182.90, 772,844.70 and 178,133.05 is: 267,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,182.90 : 772,844.70 = 178,133.05 : x
  2. Step 2: Convert to fraction form
    515,182.90/772,844.70 = 178,133.05/x
  3. Step 3: Cross multiply
    515,182.90x = 772,844.70 × 178,133.05
  4. Step 4: Simplify right side
    515,182.90x = 137,669,183,587.34
  5. Step 5: Solve for x
    x = 137,669,183,587.34/515,182.90
  6. Step 6: Final answer
    x = 267,223.90

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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.