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Finding the Fourth Proportional to 458,749.77, 688,124.66 and 143,233.71

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Solution

The fourth proportional to 458,749.77, 688,124.66 and 143,233.71 is: 214,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,749.77 : 688,124.66 = 143,233.71 : x
  2. Step 2: Convert to fraction form
    458,749.77/688,124.66 = 143,233.71/x
  3. Step 3: Cross multiply
    458,749.77x = 688,124.66 × 143,233.71
  4. Step 4: Simplify right side
    458,749.77x = 98,562,647,278.12
  5. Step 5: Solve for x
    x = 98,562,647,278.12/458,749.77
  6. Step 6: Final answer
    x = 214,850.57

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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.