Home / 459,618.88-689,428.52-144,100.39

Finding the Fourth Proportional to 459,618.88, 689,428.52 and 144,100.39

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Solution

The fourth proportional to 459,618.88, 689,428.52 and 144,100.39 is: 216,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,618.88 : 689,428.52 = 144,100.39 : x
  2. Step 2: Convert to fraction form
    459,618.88/689,428.52 = 144,100.39/x
  3. Step 3: Cross multiply
    459,618.88x = 689,428.52 × 144,100.39
  4. Step 4: Simplify right side
    459,618.88x = 99,346,918,609.12
  5. Step 5: Solve for x
    x = 99,346,918,609.12/459,618.88
  6. Step 6: Final answer
    x = 216,150.65

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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.