Home / 459,007.70-688,511.55-143,464.10

Finding the Fourth Proportional to 459,007.70, 688,511.55 and 143,464.10

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Solution

The fourth proportional to 459,007.70, 688,511.55 and 143,464.10 is: 215,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.70 : 688,511.55 = 143,464.10 : x
  2. Step 2: Convert to fraction form
    459,007.70/688,511.55 = 143,464.10/x
  3. Step 3: Cross multiply
    459,007.70x = 688,511.55 × 143,464.10
  4. Step 4: Simplify right side
    459,007.70x = 98,776,689,860.36
  5. Step 5: Solve for x
    x = 98,776,689,860.36/459,007.70
  6. Step 6: Final answer
    x = 215,196.15

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Similar ratio
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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.