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Finding the Fourth Proportional to 458,954.55, 688,556.43 and 139,093.52

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Solution

The fourth proportional to 458,954.55, 688,556.43 and 139,093.52 is: 208,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,954.55 : 688,556.43 = 139,093.52 : x
  2. Step 2: Convert to fraction form
    458,954.55/688,556.43 = 139,093.52/x
  3. Step 3: Cross multiply
    458,954.55x = 688,556.43 × 139,093.52
  4. Step 4: Simplify right side
    458,954.55x = 95,773,734,124.55
  5. Step 5: Solve for x
    x = 95,773,734,124.55/458,954.55
  6. Step 6: Final answer
    x = 208,678.04

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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.