Home / 515,184.90-772,847.70-178,135.06

Finding the Fourth Proportional to 515,184.90, 772,847.70 and 178,135.06

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Solution

The fourth proportional to 515,184.90, 772,847.70 and 178,135.06 is: 267,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,184.90 : 772,847.70 = 178,135.06 : x
  2. Step 2: Convert to fraction form
    515,184.90/772,847.70 = 178,135.06/x
  3. Step 3: Cross multiply
    515,184.90x = 772,847.70 × 178,135.06
  4. Step 4: Simplify right side
    515,184.90x = 137,671,271,410.36
  5. Step 5: Solve for x
    x = 137,671,271,410.36/515,184.90
  6. Step 6: Final answer
    x = 267,226.91

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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.