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Finding the Fourth Proportional to 455,200.20, 636,099.30 and 455,200.20

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Solution

The fourth proportional to 455,200.20, 636,099.30 and 455,200.20 is: 636,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,200.20 : 636,099.30 = 455,200.20 : x
  2. Step 2: Convert to fraction form
    455,200.20/636,099.30 = 455,200.20/x
  3. Step 3: Cross multiply
    455,200.20x = 636,099.30 × 455,200.20
  4. Step 4: Simplify right side
    455,200.20x = 289,552,528,579.86
  5. Step 5: Solve for x
    x = 289,552,528,579.86/455,200.20
  6. Step 6: Final answer
    x = 636,099.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.