Home / 456,130.20-684,195.30-288,168.60

Finding the Fourth Proportional to 456,130.20, 684,195.30 and 288,168.60

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Solution

The fourth proportional to 456,130.20, 684,195.30 and 288,168.60 is: 432,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,130.20 : 684,195.30 = 288,168.60 : x
  2. Step 2: Convert to fraction form
    456,130.20/684,195.30 = 288,168.60/x
  3. Step 3: Cross multiply
    456,130.20x = 684,195.30 × 288,168.60
  4. Step 4: Simplify right side
    456,130.20x = 197,163,601,727.58
  5. Step 5: Solve for x
    x = 197,163,601,727.58/456,130.20
  6. Step 6: Final answer
    x = 432,252.90

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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.