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Finding the Fourth Proportional to 313,258.53, 432,297.09 and 170,018.64

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Solution

The fourth proportional to 313,258.53, 432,297.09 and 170,018.64 is: 234,625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,258.53 : 432,297.09 = 170,018.64 : x
  2. Step 2: Convert to fraction form
    313,258.53/432,297.09 = 170,018.64/x
  3. Step 3: Cross multiply
    313,258.53x = 432,297.09 × 170,018.64
  4. Step 4: Simplify right side
    313,258.53x = 73,498,560,306.18
  5. Step 5: Solve for x
    x = 73,498,560,306.18/313,258.53
  6. Step 6: Final answer
    x = 234,625.89

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1.5x scale

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.