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Finding the Fourth Proportional to 372,615.28, 514,209 and 202,850.64

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Solution

The fourth proportional to 372,615.28, 514,209 and 202,850.64 is: 279,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,615.28 : 514,209 = 202,850.64 : x
  2. Step 2: Convert to fraction form
    372,615.28/514,209 = 202,850.64/x
  3. Step 3: Cross multiply
    372,615.28x = 514,209 × 202,850.64
  4. Step 4: Simplify right side
    372,615.28x = 104,307,624,743.76
  5. Step 5: Solve for x
    x = 104,307,624,743.76/372,615.28
  6. Step 6: Final answer
    x = 279,933.84

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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.