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Finding the Fourth Proportional to 850,187, 1,275,448.68 and 242,980.76

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Solution

The fourth proportional to 850,187, 1,275,448.68 and 242,980.76 is: 364,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,187 : 1,275,448.68 = 242,980.76 : x
  2. Step 2: Convert to fraction form
    850,187/1,275,448.68 = 242,980.76/x
  3. Step 3: Cross multiply
    850,187x = 1,275,448.68 × 242,980.76
  4. Step 4: Simplify right side
    850,187x = 309,909,489,607.40
  5. Step 5: Solve for x
    x = 309,909,489,607.40/850,187
  6. Step 6: Final answer
    x = 364,519.21

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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.