Home / 459,881.45-689,932.59-144,338.36

Finding the Fourth Proportional to 459,881.45, 689,932.59 and 144,338.36

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Solution

The fourth proportional to 459,881.45, 689,932.59 and 144,338.36 is: 216,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,881.45 : 689,932.59 = 144,338.36 : x
  2. Step 2: Convert to fraction form
    459,881.45/689,932.59 = 144,338.36/x
  3. Step 3: Cross multiply
    459,881.45x = 689,932.59 × 144,338.36
  4. Step 4: Simplify right side
    459,881.45x = 99,583,734,560.22
  5. Step 5: Solve for x
    x = 99,583,734,560.22/459,881.45
  6. Step 6: Final answer
    x = 216,542.19

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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.