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Finding the Fourth Proportional to 297,639.80, 446,070.90 and 120,001.40

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Solution

The fourth proportional to 297,639.80, 446,070.90 and 120,001.40 is: 179,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,639.80 : 446,070.90 = 120,001.40 : x
  2. Step 2: Convert to fraction form
    297,639.80/446,070.90 = 120,001.40/x
  3. Step 3: Cross multiply
    297,639.80x = 446,070.90 × 120,001.40
  4. Step 4: Simplify right side
    297,639.80x = 53,529,132,499.26
  5. Step 5: Solve for x
    x = 53,529,132,499.26/297,639.80
  6. Step 6: Final answer
    x = 179,845.34

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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.