Home / 254,029.07-381,043.61-85,535.29

Finding the Fourth Proportional to 254,029.07, 381,043.61 and 85,535.29

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Solution

The fourth proportional to 254,029.07, 381,043.61 and 85,535.29 is: 128,302.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,029.07 : 381,043.61 = 85,535.29 : x
  2. Step 2: Convert to fraction form
    254,029.07/381,043.61 = 85,535.29/x
  3. Step 3: Cross multiply
    254,029.07x = 381,043.61 × 85,535.29
  4. Step 4: Simplify right side
    254,029.07x = 32,592,675,684.00
  5. Step 5: Solve for x
    x = 32,592,675,684.00/254,029.07
  6. Step 6: Final answer
    x = 128,302.94

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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.