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Finding the Fourth Proportional to 488,556.30, 732,834.45 and 208,101.90

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Solution

The fourth proportional to 488,556.30, 732,834.45 and 208,101.90 is: 312,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,556.30 : 732,834.45 = 208,101.90 : x
  2. Step 2: Convert to fraction form
    488,556.30/732,834.45 = 208,101.90/x
  3. Step 3: Cross multiply
    488,556.30x = 732,834.45 × 208,101.90
  4. Step 4: Simplify right side
    488,556.30x = 152,504,241,430.46
  5. Step 5: Solve for x
    x = 152,504,241,430.46/488,556.30
  6. Step 6: Final answer
    x = 312,152.85

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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.