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Finding the Fourth Proportional to 509,016.60, 763,500.60 and 172,024.20

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Solution

The fourth proportional to 509,016.60, 763,500.60 and 172,024.20 is: 258,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,016.60 : 763,500.60 = 172,024.20 : x
  2. Step 2: Convert to fraction form
    509,016.60/763,500.60 = 172,024.20/x
  3. Step 3: Cross multiply
    509,016.60x = 763,500.60 × 172,024.20
  4. Step 4: Simplify right side
    509,016.60x = 131,340,579,914.52
  5. Step 5: Solve for x
    x = 131,340,579,914.52/509,016.60
  6. Step 6: Final answer
    x = 258,028.09

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1.5x scale

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.