Home / 345,822.60-519,317.10-228,016.20

Finding the Fourth Proportional to 345,822.60, 519,317.10 and 228,016.20

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Solution

The fourth proportional to 345,822.60, 519,317.10 and 228,016.20 is: 342,408.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,822.60 : 519,317.10 = 228,016.20 : x
  2. Step 2: Convert to fraction form
    345,822.60/519,317.10 = 228,016.20/x
  3. Step 3: Cross multiply
    345,822.60x = 519,317.10 × 228,016.20
  4. Step 4: Simplify right side
    345,822.60x = 118,412,711,737.02
  5. Step 5: Solve for x
    x = 118,412,711,737.02/345,822.60
  6. Step 6: Final answer
    x = 342,408.83

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1.5x scale

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.