Home / 346,821.20-520,231.80-178,859.60

Finding the Fourth Proportional to 346,821.20, 520,231.80 and 178,859.60

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Solution

The fourth proportional to 346,821.20, 520,231.80 and 178,859.60 is: 268,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,821.20 : 520,231.80 = 178,859.60 : x
  2. Step 2: Convert to fraction form
    346,821.20/520,231.80 = 178,859.60/x
  3. Step 3: Cross multiply
    346,821.20x = 520,231.80 × 178,859.60
  4. Step 4: Simplify right side
    346,821.20x = 93,048,451,655.28
  5. Step 5: Solve for x
    x = 93,048,451,655.28/346,821.20
  6. Step 6: Final answer
    x = 268,289.40

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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.