Home / 310,206.28-427,975.64-202,839.16

Finding the Fourth Proportional to 310,206.28, 427,975.64 and 202,839.16

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Solution

The fourth proportional to 310,206.28, 427,975.64 and 202,839.16 is: 279,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,206.28 : 427,975.64 = 202,839.16 : x
  2. Step 2: Convert to fraction form
    310,206.28/427,975.64 = 202,839.16/x
  3. Step 3: Cross multiply
    310,206.28x = 427,975.64 × 202,839.16
  4. Step 4: Simplify right side
    310,206.28x = 86,810,216,163.99
  5. Step 5: Solve for x
    x = 86,810,216,163.99/310,206.28
  6. Step 6: Final answer
    x = 279,846.74

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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.