Home / 459,293.12-688,805.76-178,743.68

Finding the Fourth Proportional to 459,293.12, 688,805.76 and 178,743.68

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Solution

The fourth proportional to 459,293.12, 688,805.76 and 178,743.68 is: 268,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,293.12 : 688,805.76 = 178,743.68 : x
  2. Step 2: Convert to fraction form
    459,293.12/688,805.76 = 178,743.68/x
  3. Step 3: Cross multiply
    459,293.12x = 688,805.76 × 178,743.68
  4. Step 4: Simplify right side
    459,293.12x = 123,119,676,347.60
  5. Step 5: Solve for x
    x = 123,119,676,347.60/459,293.12
  6. Step 6: Final answer
    x = 268,063.40

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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.