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Finding the Fourth Proportional to 628,011.70, 942,028.35 and 178,744.12

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Solution

The fourth proportional to 628,011.70, 942,028.35 and 178,744.12 is: 268,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,011.70 : 942,028.35 = 178,744.12 : x
  2. Step 2: Convert to fraction form
    628,011.70/942,028.35 = 178,744.12/x
  3. Step 3: Cross multiply
    628,011.70x = 942,028.35 × 178,744.12
  4. Step 4: Simplify right side
    628,011.70x = 168,382,028,435.80
  5. Step 5: Solve for x
    x = 168,382,028,435.80/628,011.70
  6. Step 6: Final answer
    x = 268,119.25

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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.