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Finding the Fourth Proportional to 297,323.60, 446,503.80 and 287,992.40

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Solution

The fourth proportional to 297,323.60, 446,503.80 and 287,992.40 is: 432,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,323.60 : 446,503.80 = 287,992.40 : x
  2. Step 2: Convert to fraction form
    297,323.60/446,503.80 = 287,992.40/x
  3. Step 3: Cross multiply
    297,323.60x = 446,503.80 × 287,992.40
  4. Step 4: Simplify right side
    297,323.60x = 128,589,700,971.12
  5. Step 5: Solve for x
    x = 128,589,700,971.12/297,323.60
  6. Step 6: Final answer
    x = 432,490.73

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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.