Home / 346,645.20-520,356.60-268,107.60

Finding the Fourth Proportional to 346,645.20, 520,356.60 and 268,107.60

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Solution

The fourth proportional to 346,645.20, 520,356.60 and 268,107.60 is: 402,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,645.20 : 520,356.60 = 268,107.60 : x
  2. Step 2: Convert to fraction form
    346,645.20/520,356.60 = 268,107.60/x
  3. Step 3: Cross multiply
    346,645.20x = 520,356.60 × 268,107.60
  4. Step 4: Simplify right side
    346,645.20x = 139,511,559,170.16
  5. Step 5: Solve for x
    x = 139,511,559,170.16/346,645.20
  6. Step 6: Final answer
    x = 402,462.11

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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.