Home / 318,652.22-478,050.33-105,419.62

Finding the Fourth Proportional to 318,652.22, 478,050.33 and 105,419.62

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Solution

The fourth proportional to 318,652.22, 478,050.33 and 105,419.62 is: 158,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,652.22 : 478,050.33 = 105,419.62 : x
  2. Step 2: Convert to fraction form
    318,652.22/478,050.33 = 105,419.62/x
  3. Step 3: Cross multiply
    318,652.22x = 478,050.33 × 105,419.62
  4. Step 4: Simplify right side
    318,652.22x = 50,395,884,129.47
  5. Step 5: Solve for x
    x = 50,395,884,129.47/318,652.22
  6. Step 6: Final answer
    x = 158,153.25

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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.