Home / 318,019.43-438,877.34-174,784.55

Finding the Fourth Proportional to 318,019.43, 438,877.34 and 174,784.55

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Solution

The fourth proportional to 318,019.43, 438,877.34 and 174,784.55 is: 241,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,019.43 : 438,877.34 = 174,784.55 : x
  2. Step 2: Convert to fraction form
    318,019.43/438,877.34 = 174,784.55/x
  3. Step 3: Cross multiply
    318,019.43x = 438,877.34 × 174,784.55
  4. Step 4: Simplify right side
    318,019.43x = 76,708,977,503.17
  5. Step 5: Solve for x
    x = 76,708,977,503.17/318,019.43
  6. Step 6: Final answer
    x = 241,208.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.