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Finding the Fourth Proportional to 360,018.40, 539,768.40 and 202,295.20

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Solution

The fourth proportional to 360,018.40, 539,768.40 and 202,295.20 is: 303,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,018.40 : 539,768.40 = 202,295.20 : x
  2. Step 2: Convert to fraction form
    360,018.40/539,768.40 = 202,295.20/x
  3. Step 3: Cross multiply
    360,018.40x = 539,768.40 × 202,295.20
  4. Step 4: Simplify right side
    360,018.40x = 109,192,556,431.68
  5. Step 5: Solve for x
    x = 109,192,556,431.68/360,018.40
  6. Step 6: Final answer
    x = 303,297.15

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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.