Home / 459,016.20-688,329.90-222,431.40

Finding the Fourth Proportional to 459,016.20, 688,329.90 and 222,431.40

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Solution

The fourth proportional to 459,016.20, 688,329.90 and 222,431.40 is: 333,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,016.20 : 688,329.90 = 222,431.40 : x
  2. Step 2: Convert to fraction form
    459,016.20/688,329.90 = 222,431.40/x
  3. Step 3: Cross multiply
    459,016.20x = 688,329.90 × 222,431.40
  4. Step 4: Simplify right side
    459,016.20x = 153,106,183,318.86
  5. Step 5: Solve for x
    x = 153,106,183,318.86/459,016.20
  6. Step 6: Final answer
    x = 333,552.90

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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.