Home / 346,629.20-520,089.60-188,970.80

Finding the Fourth Proportional to 346,629.20, 520,089.60 and 188,970.80

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Solution

The fourth proportional to 346,629.20, 520,089.60 and 188,970.80 is: 283,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,629.20 : 520,089.60 = 188,970.80 : x
  2. Step 2: Convert to fraction form
    346,629.20/520,089.60 = 188,970.80/x
  3. Step 3: Cross multiply
    346,629.20x = 520,089.60 × 188,970.80
  4. Step 4: Simplify right side
    346,629.20x = 98,281,747,783.68
  5. Step 5: Solve for x
    x = 98,281,747,783.68/346,629.20
  6. Step 6: Final answer
    x = 283,535.69

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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.