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Finding the Fourth Proportional to 297,294.39, 446,009.67 and 128,842.97

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Solution

The fourth proportional to 297,294.39, 446,009.67 and 128,842.97 is: 193,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,294.39 : 446,009.67 = 128,842.97 : x
  2. Step 2: Convert to fraction form
    297,294.39/446,009.67 = 128,842.97/x
  3. Step 3: Cross multiply
    297,294.39x = 446,009.67 × 128,842.97
  4. Step 4: Simplify right side
    297,294.39x = 57,465,208,301.47
  5. Step 5: Solve for x
    x = 57,465,208,301.47/297,294.39
  6. Step 6: Final answer
    x = 193,293.95

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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.