Home / 287,558.88-430,682.22-253,923

Finding the Fourth Proportional to 287,558.88, 430,682.22 and 253,923

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Solution

The fourth proportional to 287,558.88, 430,682.22 and 253,923 is: 380,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,558.88 : 430,682.22 = 253,923 : x
  2. Step 2: Convert to fraction form
    287,558.88/430,682.22 = 253,923/x
  3. Step 3: Cross multiply
    287,558.88x = 430,682.22 × 253,923
  4. Step 4: Simplify right side
    287,558.88x = 109,360,121,349.06
  5. Step 5: Solve for x
    x = 109,360,121,349.06/287,558.88
  6. Step 6: Final answer
    x = 380,305.14

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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.