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Finding the Fourth Proportional to 456,080.80, 684,196.08 and 140,537.76

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Solution

The fourth proportional to 456,080.80, 684,196.08 and 140,537.76 is: 210,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,080.80 : 684,196.08 = 140,537.76 : x
  2. Step 2: Convert to fraction form
    456,080.80/684,196.08 = 140,537.76/x
  3. Step 3: Cross multiply
    456,080.80x = 684,196.08 × 140,537.76
  4. Step 4: Simplify right side
    456,080.80x = 96,155,384,483.98
  5. Step 5: Solve for x
    x = 96,155,384,483.98/456,080.80
  6. Step 6: Final answer
    x = 210,829.71

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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.