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Finding the Fourth Proportional to 297,909.60, 446,612.64 and 129,302.40

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Solution

The fourth proportional to 297,909.60, 446,612.64 and 129,302.40 is: 193,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,909.60 : 446,612.64 = 129,302.40 : x
  2. Step 2: Convert to fraction form
    297,909.60/446,612.64 = 129,302.40/x
  3. Step 3: Cross multiply
    297,909.60x = 446,612.64 × 129,302.40
  4. Step 4: Simplify right side
    297,909.60x = 57,748,086,222.34
  5. Step 5: Solve for x
    x = 57,748,086,222.34/297,909.60
  6. Step 6: Final answer
    x = 193,844.33

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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.