Home / 346,986.80-520,480.20-268,254.80

Finding the Fourth Proportional to 346,986.80, 520,480.20 and 268,254.80

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Solution

The fourth proportional to 346,986.80, 520,480.20 and 268,254.80 is: 402,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,986.80 : 520,480.20 = 268,254.80 : x
  2. Step 2: Convert to fraction form
    346,986.80/520,480.20 = 268,254.80/x
  3. Step 3: Cross multiply
    346,986.80x = 520,480.20 × 268,254.80
  4. Step 4: Simplify right side
    346,986.80x = 139,621,311,954.96
  5. Step 5: Solve for x
    x = 139,621,311,954.96/346,986.80
  6. Step 6: Final answer
    x = 402,382.20

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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.