Home / 459,452.37-689,178.74-143,933.79

Finding the Fourth Proportional to 459,452.37, 689,178.74 and 143,933.79

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Solution

The fourth proportional to 459,452.37, 689,178.74 and 143,933.79 is: 215,900.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,452.37 : 689,178.74 = 143,933.79 : x
  2. Step 2: Convert to fraction form
    459,452.37/689,178.74 = 143,933.79/x
  3. Step 3: Cross multiply
    459,452.37x = 689,178.74 × 143,933.79
  4. Step 4: Simplify right side
    459,452.37x = 99,196,107,315.96
  5. Step 5: Solve for x
    x = 99,196,107,315.96/459,452.37
  6. Step 6: Final answer
    x = 215,900.74

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Similar ratio
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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.