Home / 346,078.20-519,408.90-156,829.80

Finding the Fourth Proportional to 346,078.20, 519,408.90 and 156,829.80

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Solution

The fourth proportional to 346,078.20, 519,408.90 and 156,829.80 is: 235,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,078.20 : 519,408.90 = 156,829.80 : x
  2. Step 2: Convert to fraction form
    346,078.20/519,408.90 = 156,829.80/x
  3. Step 3: Cross multiply
    346,078.20x = 519,408.90 × 156,829.80
  4. Step 4: Simplify right side
    346,078.20x = 81,458,793,905.22
  5. Step 5: Solve for x
    x = 81,458,793,905.22/346,078.20
  6. Step 6: Final answer
    x = 235,376.84

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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.