Home / 397,983.64-549,039.90-268,880.56

Finding the Fourth Proportional to 397,983.64, 549,039.90 and 268,880.56

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Solution

The fourth proportional to 397,983.64, 549,039.90 and 268,880.56 is: 370,935.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,983.64 : 549,039.90 = 268,880.56 : x
  2. Step 2: Convert to fraction form
    397,983.64/549,039.90 = 268,880.56/x
  3. Step 3: Cross multiply
    397,983.64x = 549,039.90 × 268,880.56
  4. Step 4: Simplify right side
    397,983.64x = 147,626,155,774.34
  5. Step 5: Solve for x
    x = 147,626,155,774.34/397,983.64
  6. Step 6: Final answer
    x = 370,935.24

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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.