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Finding the Fourth Proportional to 360,028.40, 539,783.40 and 202,305.20

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Solution

The fourth proportional to 360,028.40, 539,783.40 and 202,305.20 is: 303,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,028.40 : 539,783.40 = 202,305.20 : x
  2. Step 2: Convert to fraction form
    360,028.40/539,783.40 = 202,305.20/x
  3. Step 3: Cross multiply
    360,028.40x = 539,783.40 × 202,305.20
  4. Step 4: Simplify right side
    360,028.40x = 109,200,988,693.68
  5. Step 5: Solve for x
    x = 109,200,988,693.68/360,028.40
  6. Step 6: Final answer
    x = 303,312.15

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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.