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Finding the Fourth Proportional to 333,902.88, 499,657.08 and 289,078.40

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Solution

The fourth proportional to 333,902.88, 499,657.08 and 289,078.40 is: 432,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,902.88 : 499,657.08 = 289,078.40 : x
  2. Step 2: Convert to fraction form
    333,902.88/499,657.08 = 289,078.40/x
  3. Step 3: Cross multiply
    333,902.88x = 499,657.08 × 289,078.40
  4. Step 4: Simplify right side
    333,902.88x = 144,440,067,789.68
  5. Step 5: Solve for x
    x = 144,440,067,789.68/333,902.88
  6. Step 6: Final answer
    x = 432,581.08

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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.