Home / 456,495.20-684,742.80-140,911.10

Finding the Fourth Proportional to 456,495.20, 684,742.80 and 140,911.10

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Solution

The fourth proportional to 456,495.20, 684,742.80 and 140,911.10 is: 211,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,495.20 : 684,742.80 = 140,911.10 : x
  2. Step 2: Convert to fraction form
    456,495.20/684,742.80 = 140,911.10/x
  3. Step 3: Cross multiply
    456,495.20x = 684,742.80 × 140,911.10
  4. Step 4: Simplify right side
    456,495.20x = 96,487,861,165.08
  5. Step 5: Solve for x
    x = 96,487,861,165.08/456,495.20
  6. Step 6: Final answer
    x = 211,366.65

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Similar ratio
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1.5x scale

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.