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Finding the Fourth Proportional to 360,921.67, 498,203.13 and 210,018.67

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Solution

The fourth proportional to 360,921.67, 498,203.13 and 210,018.67 is: 289,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,921.67 : 498,203.13 = 210,018.67 : x
  2. Step 2: Convert to fraction form
    360,921.67/498,203.13 = 210,018.67/x
  3. Step 3: Cross multiply
    360,921.67x = 498,203.13 × 210,018.67
  4. Step 4: Simplify right side
    360,921.67x = 104,631,958,752.44
  5. Step 5: Solve for x
    x = 104,631,958,752.44/360,921.67
  6. Step 6: Final answer
    x = 289,902.12

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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.