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Finding the Fourth Proportional to 873,308, 1,309,961.76 and 242,221.88

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Solution

The fourth proportional to 873,308, 1,309,961.76 and 242,221.88 is: 363,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,308 : 1,309,961.76 = 242,221.88 : x
  2. Step 2: Convert to fraction form
    873,308/1,309,961.76 = 242,221.88/x
  3. Step 3: Cross multiply
    873,308x = 1,309,961.76 × 242,221.88
  4. Step 4: Simplify right side
    873,308x = 317,301,400,235.31
  5. Step 5: Solve for x
    x = 317,301,400,235.31/873,308
  6. Step 6: Final answer
    x = 363,332.75

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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.