Home / 459,830.82-689,775.39-144,300.18

Finding the Fourth Proportional to 459,830.82, 689,775.39 and 144,300.18

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Solution

The fourth proportional to 459,830.82, 689,775.39 and 144,300.18 is: 216,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,830.82 : 689,775.39 = 144,300.18 : x
  2. Step 2: Convert to fraction form
    459,830.82/689,775.39 = 144,300.18/x
  3. Step 3: Cross multiply
    459,830.82x = 689,775.39 × 144,300.18
  4. Step 4: Simplify right side
    459,830.82x = 99,534,712,936.57
  5. Step 5: Solve for x
    x = 99,534,712,936.57/459,830.82
  6. Step 6: Final answer
    x = 216,459.42

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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.