Home / 459,447.94-689,171.37-143,929.42

Finding the Fourth Proportional to 459,447.94, 689,171.37 and 143,929.42

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Solution

The fourth proportional to 459,447.94, 689,171.37 and 143,929.42 is: 215,893.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,447.94 : 689,171.37 = 143,929.42 : x
  2. Step 2: Convert to fraction form
    459,447.94/689,171.37 = 143,929.42/x
  3. Step 3: Cross multiply
    459,447.94x = 689,171.37 × 143,929.42
  4. Step 4: Simplify right side
    459,447.94x = 99,192,035,564.71
  5. Step 5: Solve for x
    x = 99,192,035,564.71/459,447.94
  6. Step 6: Final answer
    x = 215,893.96

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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.