Home / 286,039.28-428,759.52-96,434.12

Finding the Fourth Proportional to 286,039.28, 428,759.52 and 96,434.12

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Solution

The fourth proportional to 286,039.28, 428,759.52 and 96,434.12 is: 144,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,039.28 : 428,759.52 = 96,434.12 : x
  2. Step 2: Convert to fraction form
    286,039.28/428,759.52 = 96,434.12/x
  3. Step 3: Cross multiply
    286,039.28x = 428,759.52 × 96,434.12
  4. Step 4: Simplify right side
    286,039.28x = 41,347,047,002.82
  5. Step 5: Solve for x
    x = 41,347,047,002.82/286,039.28
  6. Step 6: Final answer
    x = 144,550.24

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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.