Home / 459,285.12-688,793.76-178,735.68

Finding the Fourth Proportional to 459,285.12, 688,793.76 and 178,735.68

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Solution

The fourth proportional to 459,285.12, 688,793.76 and 178,735.68 is: 268,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,285.12 : 688,793.76 = 178,735.68 : x
  2. Step 2: Convert to fraction form
    459,285.12/688,793.76 = 178,735.68/x
  3. Step 3: Cross multiply
    459,285.12x = 688,793.76 × 178,735.68
  4. Step 4: Simplify right side
    459,285.12x = 123,112,021,073.36
  5. Step 5: Solve for x
    x = 123,112,021,073.36/459,285.12
  6. Step 6: Final answer
    x = 268,051.40

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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.