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Finding the Third Proportional to 317,851.50 and 480,018

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Solution

The third proportional to 317,851.50 and 480,018 is: 724,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,851.50 : 480,018 = 480,018 : x
  2. Step 2: Convert to fraction form
    317,851.50/480,018 = 480,018/x
  3. Step 3: Cross multiply
    317,851.50x = 480,018 × 480,018
  4. Step 4: Simplify right side
    317,851.50x = 230,417,280,324
  5. Step 5: Solve for x
    x = 230,417,280,324/317,851.50
  6. Step 6: Final answer
    x = 724,921.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.